136941731 has 2 divisors, whose sum is σ = 136941732. Its totient is φ = 136941730.

The previous prime is 136941677. The next prime is 136941737. The reversal of 136941731 is 137149631.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (137149631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136941731 - 2¹⁰ = 136940707 is a prime.

It is a super-2 number, since 2×136941731² = 37506075378552722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 136941691 and 136941700.

It is not a weakly prime, because it can be changed into another prime (136941737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68470865 + 68470866.

It is an arithmetic number, because the mean of its divisors is an integer number (68470866).

Almost surely, 2^136941731 is an apocalyptic number.

136941731 is a deficient number, since it is larger than the sum of its proper divisors (1).

136941731 is an equidigital number, since it uses as much as digits as its factorization.

136941731 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 136941731 is about 11702.2105176757. The cubic root of 136941731 is about 515.4405768908.

The spelling of 136941731 in words is "one hundred thirty-six million, nine hundred forty-one thousand, seven hundred thirty-one".