151189638 has 32 divisors (see below), whose sum is σ = 306485856. Its totient is φ = 49717248.

The previous prime is 151189607. The next prime is 151189639. The reversal of 151189638 is 836981151.

It is a self number, because there is not a number n which added to its sum of digits gives 151189638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151189639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158170 + ... + 159122.

It is an arithmetic number, because the mean of its divisors is an integer number (9577683).

Almost surely, 2^151189638 is an apocalyptic number.

151189638 is an abundant number, since it is smaller than the sum of its proper divisors (155296218).

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

151189638 is a wasteful number, since it uses less digits than its factorization.

151189638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288.

The product of its digits is 51840, while the sum is 42.

The square root of 151189638 is about 12295.9195670759. The cubic root of 151189638 is about 532.7302308452.

It can be divided in two parts, 15 and 1189638, that added together give a triangular number (1189653 = T₁₅₄₂).

The spelling of 151189638 in words is "one hundred fifty-one million, one hundred eighty-nine thousand, six hundred thirty-eight".