150391878 has 144 divisors (see below), whose sum is σ = 401330160. Its totient is φ = 37231488.

The previous prime is 150391873. The next prime is 150391903. The reversal of 150391878 is 878193051.

150391878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×150391878³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150391873) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1379688 + ... + 1379796.

It is an arithmetic number, because the mean of its divisors is an integer number (2787015).

Almost surely, 2^150391878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 150391878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200665080).

150391878 is an abundant number, since it is smaller than the sum of its proper divisors (250938282).

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

150391878 is a wasteful number, since it uses less digits than its factorization.

150391878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 150391878 is about 12263.4366308959. The cubic root of 150391878 is about 531.7915850292.

The spelling of 150391878 in words is "one hundred fifty million, three hundred ninety-one thousand, eight hundred seventy-eight".