131434739 has 2 divisors, whose sum is σ = 131434740. Its totient is φ = 131434738.

The previous prime is 131434727. The next prime is 131434747. The reversal of 131434739 is 937434131.

It is a strong prime.

It is an emirp because it is prime and its reverse (937434131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131434739 - 2⁸ = 131434483 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131434699 and 131434708.

It is not a weakly prime, because it can be changed into another prime (131434759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65717369 + 65717370.

It is an arithmetic number, because the mean of its divisors is an integer number (65717370).

Almost surely, 2^131434739 is an apocalyptic number.

131434739 is a deficient number, since it is larger than the sum of its proper divisors (1).

131434739 is an equidigital number, since it uses as much as digits as its factorization.

131434739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 131434739 is about 11464.4990732260. The cubic root of 131434739 is about 508.4365022407.

The spelling of 131434739 in words is "one hundred thirty-one million, four hundred thirty-four thousand, seven hundred thirty-nine".