149894920 has 96 divisors (see below), whose sum is σ = 405146880. Its totient is φ = 49714560.

The previous prime is 149894917. The next prime is 149894977. The reversal of 149894920 is 29498941.

149894920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59527 + ... + 61993.

It is an arithmetic number, because the mean of its divisors is an integer number (4220280).

Almost surely, 2^149894920 is an apocalyptic number.

149894920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149894920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202573440).

149894920 is an abundant number, since it is smaller than the sum of its proper divisors (255251960).

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

149894920 is a wasteful number, since it uses less digits than its factorization.

149894920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 149894920 is about 12243.1580893167. The cubic root of 149894920 is about 531.2051843164.

The spelling of 149894920 in words is "one hundred forty-nine million, eight hundred ninety-four thousand, nine hundred twenty".