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131596741 is a prime number
BaseRepresentation
bin1111101100000…
…00000111000101
3100011121210210101
413312000013011
5232142043431
621020324101
73155360653
oct766000705
9304553711
10131596741
1168312641
12380a3631
13213574c3
1413697dd3
15b846961
hex7d801c5

131596741 has 2 divisors, whose sum is σ = 131596742. Its totient is φ = 131596740.

The previous prime is 131596739. The next prime is 131596771. The reversal of 131596741 is 147695131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115476516 + 16120225 = 10746^2 + 4015^2 .

It is a cyclic number.

It is not a de Polignac number, because 131596741 - 21 = 131596739 is a prime.

Together with 131596739, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131596741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131596771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65798370 + 65798371.

It is an arithmetic number, because the mean of its divisors is an integer number (65798371).

Almost surely, 2131596741 is an apocalyptic number.

It is an amenable number.

131596741 is a deficient number, since it is larger than the sum of its proper divisors (1).

131596741 is an equidigital number, since it uses as much as digits as its factorization.

131596741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 131596741 is about 11471.5622737271. The cubic root of 131596741 is about 508.6453103351.

It can be divided in two parts, 13159 and 6741, that added together give a triangular number (19900 = T199).

The spelling of 131596741 in words is "one hundred thirty-one million, five hundred ninety-six thousand, seven hundred forty-one".