149165888 has 56 divisors (see below), whose sum is σ = 317991744. Its totient is φ = 69171200.

The previous prime is 149165881. The next prime is 149165899. The reversal of 149165888 is 888561941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149165881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76283 + ... + 78213.

It is an arithmetic number, because the mean of its divisors is an integer number (5678424).

Almost surely, 2^149165888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149165888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158995872).

149165888 is an abundant number, since it is smaller than the sum of its proper divisors (168825856).

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

149165888 is a wasteful number, since it uses less digits than its factorization.

149165888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2021 counting only the distinct ones).

The product of its digits is 552960, while the sum is 50.

The square root of 149165888 is about 12213.3487627268. The cubic root of 149165888 is about 530.3425908910.

The spelling of 149165888 in words is "one hundred forty-nine million, one hundred sixty-five thousand, eight hundred eighty-eight".