137525970 has 32 divisors (see below), whose sum is σ = 344414592. Its totient is φ = 35078912.

The previous prime is 137525963. The next prime is 137525977. The reversal of 137525970 is 79525731.

It is an interprime number because it is at equal distance from previous prime (137525963) and next prime (137525977).

It is not an unprimeable number, because it can be changed into a prime (137525977) by changing a digit.

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, 98967 + ... + 100346.

It is an arithmetic number, because the mean of its divisors is an integer number (10762956).

Almost surely, 2^137525970 is an apocalyptic number.

137525970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137525970 is an abundant number, since it is smaller than the sum of its proper divisors (206888622).

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

137525970 is a wasteful number, since it uses less digits than its factorization.

137525970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199346.

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 137525970 is about 11727.1467117965. The cubic root of 137525970 is about 516.1725506094.

The spelling of 137525970 in words is "one hundred thirty-seven million, five hundred twenty-five thousand, nine hundred seventy".