137550020 has 12 divisors (see below), whose sum is σ = 288855084. Its totient is φ = 55020000.

The previous prime is 137550019. The next prime is 137550047. The reversal of 137550020 is 20055731.

It can be written as a sum of positive squares in 2 ways, for example, as 25867396 + 111682624 = 5086^2 + 10568^2 .

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 3 ways as a sum of consecutive naturals, for example, 3438731 + ... + 3438770.

It is an arithmetic number, because the mean of its divisors is an integer number (24071257).

Almost surely, 2^137550020 is an apocalyptic number.

137550020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137550020 is an abundant number, since it is smaller than the sum of its proper divisors (151305064).

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

137550020 is a wasteful number, since it uses less digits than its factorization.

137550020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877510 (or 6877508 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 137550020 is about 11728.1720655864. The cubic root of 137550020 is about 516.2026375965.

The spelling of 137550020 in words is "one hundred thirty-seven million, five hundred fifty thousand, twenty".