138196674 has 48 divisors (see below), whose sum is σ = 373314240. Its totient is φ = 35894880.

The previous prime is 138196651. The next prime is 138196697. The reversal of 138196674 is 476691831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (138196651) and next prime (138196697).

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 48469 + ... + 51240.

It is an arithmetic number, because the mean of its divisors is an integer number (7777380).

Almost surely, 2^138196674 is an apocalyptic number.

138196674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138196674 is an abundant number, since it is smaller than the sum of its proper divisors (235117566).

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

138196674 is a wasteful number, since it uses less digits than its factorization.

138196674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99735 (or 99732 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 138196674 is about 11755.7081454075. The cubic root of 138196674 is about 517.0103020019.

The spelling of 138196674 in words is "one hundred thirty-eight million, one hundred ninety-six thousand, six hundred seventy-four".