137245420 has 48 divisors (see below), whose sum is σ = 328654368. Its totient is φ = 47692800.

The previous prime is 137245411. The next prime is 137245441. The reversal of 137245420 is 24542731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11106 + ... + 19945.

It is an arithmetic number, because the mean of its divisors is an integer number (6846966).

Almost surely, 2^137245420 is an apocalyptic number.

137245420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137245420 is an abundant number, since it is smaller than the sum of its proper divisors (191408948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137245420 is a wasteful number, since it uses less digits than its factorization.

137245420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31090 (or 31088 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 137245420 is about 11715.1790425926. The cubic root of 137245420 is about 515.8213180577.

The spelling of 137245420 in words is "one hundred thirty-seven million, two hundred forty-five thousand, four hundred twenty".