137531330 has 8 divisors (see below), whose sum is σ = 247556412. Its totient is φ = 55012528.

The previous prime is 137531327. The next prime is 137531333. The reversal of 137531330 is 33135731.

It is an interprime number because it is at equal distance from previous prime (137531327) and next prime (137531333).

It can be written as a sum of positive squares in 2 ways, for example, as 137053849 + 477481 = 11707^2 + 691^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 137531330.

It is not an unprimeable number, because it can be changed into a prime (137531333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6876557 + ... + 6876576.

Almost surely, 2^137531330 is an apocalyptic number.

137531330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137531330 is a deficient number, since it is larger than the sum of its proper divisors (110025082).

137531330 is a wasteful number, since it uses less digits than its factorization.

137531330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13753140.

The product of its (nonzero) digits is 2835, while the sum is 26.

The square root of 137531330 is about 11727.3752391573. The cubic root of 137531330 is about 516.1792563706.

The spelling of 137531330 in words is "one hundred thirty-seven million, five hundred thirty-one thousand, three hundred thirty".