137655823 has 2 divisors, whose sum is σ = 137655824. Its totient is φ = 137655822.

The previous prime is 137655811. The next prime is 137655839. The reversal of 137655823 is 328556731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137655823 - 2²⁵ = 104101391 is a prime.

It is equal to p_7787272 and since 137655823 and 7787272 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137655853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68827911 + 68827912.

It is an arithmetic number, because the mean of its divisors is an integer number (68827912).

Almost surely, 2^137655823 is an apocalyptic number.

137655823 is a deficient number, since it is larger than the sum of its proper divisors (1).

137655823 is an equidigital number, since it uses as much as digits as its factorization.

137655823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 137655823 is about 11732.6818332383. The cubic root of 137655823 is about 516.3349574373.

The spelling of 137655823 in words is "one hundred thirty-seven million, six hundred fifty-five thousand, eight hundred twenty-three".