137601731 has 2 divisors, whose sum is σ = 137601732. Its totient is φ = 137601730.

The previous prime is 137601721. The next prime is 137601733. The reversal of 137601731 is 137106731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137601731 - 2¹⁰ = 137600707 is a prime.

It is a super-2 number, since 2×137601731² = 37868472748392722, which contains 22 as substring.

Together with 137601733, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 137601694 and 137601703.

It is not a weakly prime, because it can be changed into another prime (137601733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68800865 + 68800866.

It is an arithmetic number, because the mean of its divisors is an integer number (68800866).

Almost surely, 2^137601731 is an apocalyptic number.

137601731 is a deficient number, since it is larger than the sum of its proper divisors (1).

137601731 is an equidigital number, since it uses as much as digits as its factorization.

137601731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 137601731 is about 11730.3764219227. The cubic root of 137601731 is about 516.2673171224.

The spelling of 137601731 in words is "one hundred thirty-seven million, six hundred one thousand, seven hundred thirty-one".