137394609 has 16 divisors (see below), whose sum is σ = 201685440. Its totient is φ = 82503360.

The previous prime is 137394599. The next prime is 137394623. The reversal of 137394609 is 906493731.

It is not a de Polignac number, because 137394609 - 2⁸ = 137394353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137394659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15502 + ... + 22695.

It is an arithmetic number, because the mean of its divisors is an integer number (12605340).

Almost surely, 2^137394609 is an apocalyptic number.

It is an amenable number.

137394609 is a deficient number, since it is larger than the sum of its proper divisors (64290831).

137394609 is a wasteful number, since it uses less digits than its factorization.

137394609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38320.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 137394609 is about 11721.5446507702. The cubic root of 137394609 is about 516.0081536780.

The spelling of 137394609 in words is "one hundred thirty-seven million, three hundred ninety-four thousand, six hundred nine".