137242864 has 40 divisors (see below), whose sum is σ = 295574832. Its totient is φ = 61201920.

The previous prime is 137242837. The next prime is 137242939. The reversal of 137242864 is 468242731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972 + ... + 16684.

Almost surely, 2^137242864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137242864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147787416).

137242864 is an abundant number, since it is smaller than the sum of its proper divisors (158331968).

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

137242864 is a wasteful number, since it uses less digits than its factorization.

137242864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14785 (or 14779 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 137242864 is about 11715.0699528428. The cubic root of 137242864 is about 515.8181158927.

The spelling of 137242864 in words is "one hundred thirty-seven million, two hundred forty-two thousand, eight hundred sixty-four".