138087762 has 8 divisors (see below), whose sum is σ = 276175536. Its totient is φ = 46029252.

The previous prime is 138087757. The next prime is 138087769. The reversal of 138087762 is 267780831.

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

138087762 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (138087769) 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, 11507308 + ... + 11507319.

It is an arithmetic number, because the mean of its divisors is an integer number (34521942).

Almost surely, 2^138087762 is an apocalyptic number.

138087762 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

138087762 is a wasteful number, since it uses less digits than its factorization.

138087762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23014632.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 138087762 is about 11751.0749295543. The cubic root of 138087762 is about 516.8744486971.

The spelling of 138087762 in words is "one hundred thirty-eight million, eighty-seven thousand, seven hundred sixty-two".