138751260 has 24 divisors (see below), whose sum is σ = 388503696. Its totient is φ = 37000320.

The previous prime is 138751247. The next prime is 138751273. The reversal of 138751260 is 62157831.

It is an interprime number because it is at equal distance from previous prime (138751247) and next prime (138751273).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1156201 + ... + 1156320.

It is an arithmetic number, because the mean of its divisors is an integer number (16187654).

Almost surely, 2^138751260 is an apocalyptic number.

138751260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138751260 is an abundant number, since it is smaller than the sum of its proper divisors (249752436).

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

138751260 is a wasteful number, since it uses less digits than its factorization.

138751260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312533 (or 2312531 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 138751260 is about 11779.2724732897. The cubic root of 138751260 is about 517.7009698095.

The spelling of 138751260 in words is "one hundred thirty-eight million, seven hundred fifty-one thousand, two hundred sixty".