152189638 has 4 divisors (see below), whose sum is σ = 228284460. Its totient is φ = 76094818.

The previous prime is 152189623. The next prime is 152189641. The reversal of 152189638 is 836981251.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 152189594 and 152189603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38047408 + ... + 38047411.

It is an arithmetic number, because the mean of its divisors is an integer number (57071115).

Almost surely, 2^152189638 is an apocalyptic number.

152189638 is a deficient number, since it is larger than the sum of its proper divisors (76094822).

152189638 is an equidigital number, since it uses as much as digits as its factorization.

152189638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76094821.

The product of its digits is 103680, while the sum is 43.

The square root of 152189638 is about 12336.5164450910. The cubic root of 152189638 is about 533.9021806450.

The spelling of 152189638 in words is "one hundred fifty-two million, one hundred eighty-nine thousand, six hundred thirty-eight".