138315696 has 40 divisors (see below), whose sum is σ = 357923520. Its totient is φ = 46026816.

The previous prime is 138315691. The next prime is 138315719. The reversal of 138315696 is 696513831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (138315691) 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, 30675 + ... + 34893.

It is an arithmetic number, because the mean of its divisors is an integer number (8948088).

Almost surely, 2^138315696 is an apocalyptic number.

138315696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138315696 is an abundant number, since it is smaller than the sum of its proper divisors (219607824).

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

138315696 is a wasteful number, since it uses less digits than its factorization.

138315696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913 (or 4907 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 138315696 is about 11760.7693625885. The cubic root of 138315696 is about 517.1586845956.

The spelling of 138315696 in words is "one hundred thirty-eight million, three hundred fifteen thousand, six hundred ninety-six".