149549568 has 120 divisors (see below), whose sum is σ = 463689072. Its totient is φ = 42706944.

The previous prime is 149549567. The next prime is 149549579. The reversal of 149549568 is 865945941.

149549568 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 149549568.

It is not an unprimeable number, because it can be changed into a prime (149549563) 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 11 ways as a sum of consecutive naturals, for example, 74271 + ... + 76257.

Almost surely, 2^149549568 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 149549568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231844536).

149549568 is an abundant number, since it is smaller than the sum of its proper divisors (314139504).

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

149549568 is an equidigital number, since it uses as much as digits as its factorization.

149549568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022 (or 1999 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 149549568 is about 12229.0460789057. The cubic root of 149549568 is about 530.7969119908.

The spelling of 149549568 in words is "one hundred forty-nine million, five hundred forty-nine thousand, five hundred sixty-eight".