138525110 has 16 divisors (see below), whose sum is σ = 249480432. Its totient is φ = 55380000.

The previous prime is 138525073. The next prime is 138525119. The reversal of 138525110 is 11525831.

It is a happy number.

It is a super-2 number, since 2×138525110² = 38378412201024200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138525110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138525119) 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 7 ways as a sum of consecutive naturals, for example, 30380 + ... + 34640.

It is an arithmetic number, because the mean of its divisors is an integer number (15592527).

Almost surely, 2^138525110 is an apocalyptic number.

138525110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138525110 is a deficient number, since it is larger than the sum of its proper divisors (110955322).

138525110 is a wasteful number, since it uses less digits than its factorization.

138525110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 138525110 is about 11769.6690692644. The cubic root of 138525110 is about 517.4195507668.

The spelling of 138525110 in words is "one hundred thirty-eight million, five hundred twenty-five thousand, one hundred ten".