137500390 has 16 divisors (see below), whose sum is σ = 249953040. Its totient is φ = 54455200.

The previous prime is 137500367. The next prime is 137500411. The reversal of 137500390 is 93005731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67060 + ... + 69079.

It is an arithmetic number, because the mean of its divisors is an integer number (15622065).

Almost surely, 2^137500390 is an apocalyptic number.

137500390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137500390 is a deficient number, since it is larger than the sum of its proper divisors (112452650).

137500390 is a wasteful number, since it uses less digits than its factorization.

137500390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136247.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 137500390 is about 11726.0560292027. The cubic root of 137500390 is about 516.1405457147.

The spelling of 137500390 in words is "one hundred thirty-seven million, five hundred thousand, three hundred ninety".