137328646 has 32 divisors (see below), whose sum is σ = 256612608. Its totient is φ = 53667360.

The previous prime is 137328619. The next prime is 137328647. The reversal of 137328646 is 646823731.

It is a junction number, because it is equal to n+sod(n) for n = 137328599 and 137328608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137328647) 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, 10561 + ... + 19651.

It is an arithmetic number, because the mean of its divisors is an integer number (8019144).

Almost surely, 2^137328646 is an apocalyptic number.

137328646 is a deficient number, since it is larger than the sum of its proper divisors (119283962).

137328646 is a wasteful number, since it uses less digits than its factorization.

137328646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196.

The product of its digits is 145152, while the sum is 40.

The square root of 137328646 is about 11718.7305626505. The cubic root of 137328646 is about 515.9255621444.

The spelling of 137328646 in words is "one hundred thirty-seven million, three hundred twenty-eight thousand, six hundred forty-six".