137242764 has 36 divisors (see below), whose sum is σ = 349464024. Its totient is φ = 45412032.

The previous prime is 137242759. The next prime is 137242783. The reversal of 137242764 is 467242731.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8982 + ... + 18845.

It is an arithmetic number, because the mean of its divisors is an integer number (9707334).

Almost surely, 2^137242764 is an apocalyptic number.

It is an amenable number.

137242764 is an abundant number, since it is smaller than the sum of its proper divisors (212221260).

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

137242764 is a wasteful number, since it uses less digits than its factorization.

137242764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27974 (or 27969 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 137242764 is about 11715.0656848351. The cubic root of 137242764 is about 515.8179906115.

It can be divided in two parts, 1 and 37242764, that added together give a triangular number (37242765 = T₈₆₃₀).

The spelling of 137242764 in words is "one hundred thirty-seven million, two hundred forty-two thousand, seven hundred sixty-four".