138801542 has 8 divisors (see below), whose sum is σ = 227129832. Its totient is φ = 63091600.

The previous prime is 138801529. The next prime is 138801563. The reversal of 138801542 is 245108831.

138801542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 138801499 and 138801508.

It is a congruent number.

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, 3154559 + ... + 3154602.

It is an arithmetic number, because the mean of its divisors is an integer number (28391229).

Almost surely, 2^138801542 is an apocalyptic number.

138801542 is a deficient number, since it is larger than the sum of its proper divisors (88328290).

138801542 is a wasteful number, since it uses less digits than its factorization.

138801542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6309174.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 138801542 is about 11781.4066223011. The cubic root of 138801542 is about 517.7634987224.

The spelling of 138801542 in words is "one hundred thirty-eight million, eight hundred one thousand, five hundred forty-two".