137512649797 has 2 divisors, whose sum is σ = 137512649798. Its totient is φ = 137512649796.

The previous prime is 137512649759. The next prime is 137512649801. The reversal of 137512649797 is 797946215731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125507941441 + 12004708356 = 354271^2 + 109566^2 .

It is a cyclic number.

It is not a de Polignac number, because 137512649797 - 2²⁷ = 137378432069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137512649717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68756324898 + 68756324899.

It is an arithmetic number, because the mean of its divisors is an integer number (68756324899).

Almost surely, 2^137512649797 is an apocalyptic number.

It is an amenable number.

137512649797 is a deficient number, since it is larger than the sum of its proper divisors (1).

137512649797 is an equidigital number, since it uses as much as digits as its factorization.

137512649797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20003760, while the sum is 61.

The spelling of 137512649797 in words is "one hundred thirty-seven billion, five hundred twelve million, six hundred forty-nine thousand, seven hundred ninety-seven".