137345869 has 2 divisors, whose sum is σ = 137345870. Its totient is φ = 137345868.

The previous prime is 137345863. The next prime is 137345893. The reversal of 137345869 is 968543731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79388100 + 57957769 = 8910^2 + 7613^2 .

It is a cyclic number.

It is not a de Polignac number, because 137345869 - 2⁵ = 137345837 is a prime.

It is a super-2 number, since 2×137345869² = 37727775462730322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137345863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68672934 + 68672935.

It is an arithmetic number, because the mean of its divisors is an integer number (68672935).

Almost surely, 2^137345869 is an apocalyptic number.

It is an amenable number.

137345869 is a deficient number, since it is larger than the sum of its proper divisors (1).

137345869 is an equidigital number, since it uses as much as digits as its factorization.

137345869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 137345869 is about 11719.4653888307. The cubic root of 137345869 is about 515.9471294206.

The spelling of 137345869 in words is "one hundred thirty-seven million, three hundred forty-five thousand, eight hundred sixty-nine".