138495652 has 12 divisors (see below), whose sum is σ = 247524480. Its totient is φ = 67774376.

The previous prime is 138495641. The next prime is 138495671. The reversal of 138495652 is 256594831.

It is a junction number, because it is equal to n+sod(n) for n = 138495599 and 138495608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368152 + ... + 368527.

It is an arithmetic number, because the mean of its divisors is an integer number (20627040).

Almost surely, 2^138495652 is an apocalyptic number.

It is an amenable number.

138495652 is a deficient number, since it is larger than the sum of its proper divisors (109028828).

138495652 is a wasteful number, since it uses less digits than its factorization.

138495652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736730 (or 736728 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The square root of 138495652 is about 11768.4175656713. The cubic root of 138495652 is about 517.3828709531.

The spelling of 138495652 in words is "one hundred thirty-eight million, four hundred ninety-five thousand, six hundred fifty-two".