137504390 has 8 divisors (see below), whose sum is σ = 247507920. Its totient is φ = 55001752.

The previous prime is 137504383. The next prime is 137504407. The reversal of 137504390 is 93405731.

It is a happy number.

137504390 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6875210 + ... + 6875229.

It is an arithmetic number, because the mean of its divisors is an integer number (30938490).

Almost surely, 2^137504390 is an apocalyptic number.

137504390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137504390 is a deficient number, since it is larger than the sum of its proper divisors (110003530).

137504390 is a wasteful number, since it uses less digits than its factorization.

137504390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13750446.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 137504390 is about 11726.2265882934. The cubic root of 137504390 is about 516.1455506512.

The spelling of 137504390 in words is "one hundred thirty-seven million, five hundred four thousand, three hundred ninety".