150381918 has 12 divisors (see below), whose sum is σ = 325827528. Its totient is φ = 50127300.

The previous prime is 150381901. The next prime is 150381919. The reversal of 150381918 is 819183051.

150381918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×150381918² = 45229442522717448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150381919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4177258 + ... + 4177293.

It is an arithmetic number, because the mean of its divisors is an integer number (27152294).

Almost surely, 2^150381918 is an apocalyptic number.

150381918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

150381918 is an abundant number, since it is smaller than the sum of its proper divisors (175445610).

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

150381918 is a wasteful number, since it uses less digits than its factorization.

150381918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8354559 (or 8354556 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 150381918 is about 12263.0305389818. The cubic root of 150381918 is about 531.7798451197.

The spelling of 150381918 in words is "one hundred fifty million, three hundred eighty-one thousand, nine hundred eighteen".