137564899 has 2 divisors, whose sum is σ = 137564900. Its totient is φ = 137564898.

The previous prime is 137564891. The next prime is 137564953. The reversal of 137564899 is 998465731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137564899 - 2³ = 137564891 is a prime.

It is not a weakly prime, because it can be changed into another prime (137564891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68782449 + 68782450.

It is an arithmetic number, because the mean of its divisors is an integer number (68782450).

Almost surely, 2^137564899 is an apocalyptic number.

137564899 is a deficient number, since it is larger than the sum of its proper divisors (1).

137564899 is an equidigital number, since it uses as much as digits as its factorization.

137564899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 137564899 is about 11728.8063757571. The cubic root of 137564899 is about 516.2212497400.

The spelling of 137564899 in words is "one hundred thirty-seven million, five hundred sixty-four thousand, eight hundred ninety-nine".