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131485741 is a prime number
BaseRepresentation
bin1111101011001…
…01000000101101
3100011102011112021
413311211000231
5232130020431
621014110141
73154416232
oct765450055
9304364467
10131485741
1168247202
123804b351
1321318b1a
1413669789
15b823b11
hex7d6502d

131485741 has 2 divisors, whose sum is σ = 131485742. Its totient is φ = 131485740.

The previous prime is 131485699. The next prime is 131485759. The reversal of 131485741 is 147584131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99800100 + 31685641 = 9990^2 + 5629^2 .

It is an emirp because it is prime and its reverse (147584131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131485741 - 217 = 131354669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131485697 and 131485706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131485771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65742870 + 65742871.

It is an arithmetic number, because the mean of its divisors is an integer number (65742871).

Almost surely, 2131485741 is an apocalyptic number.

It is an amenable number.

131485741 is a deficient number, since it is larger than the sum of its proper divisors (1).

131485741 is an equidigital number, since it uses as much as digits as its factorization.

131485741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 131485741 is about 11466.7232023800. The cubic root of 131485741 is about 508.5022583852.

The spelling of 131485741 in words is "one hundred thirty-one million, four hundred eighty-five thousand, seven hundred forty-one".