131146739 has 2 divisors, whose sum is σ = 131146740. Its totient is φ = 131146738.

The previous prime is 131146733. The next prime is 131146819. The reversal of 131146739 is 937641131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131146739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131146699 and 131146708.

It is not a weakly prime, because it can be changed into another prime (131146733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65573369 + 65573370.

It is an arithmetic number, because the mean of its divisors is an integer number (65573370).

Almost surely, 2^131146739 is an apocalyptic number.

131146739 is a deficient number, since it is larger than the sum of its proper divisors (1).

131146739 is an equidigital number, since it uses as much as digits as its factorization.

131146739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 131146739 is about 11451.9316711199. The cubic root of 131146739 is about 508.0648683878.

The spelling of 131146739 in words is "one hundred thirty-one million, one hundred forty-six thousand, seven hundred thirty-nine".