149912988 has 24 divisors (see below), whose sum is σ = 365006208. Its totient is φ = 47798256.

The previous prime is 149912963. The next prime is 149912999. The reversal of 149912988 is 889219941.

It is a self number, because there is not a number n which added to its sum of digits gives 149912988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271306 + ... + 271857.

It is an arithmetic number, because the mean of its divisors is an integer number (15208592).

Almost surely, 2^149912988 is an apocalyptic number.

It is an amenable number.

149912988 is an abundant number, since it is smaller than the sum of its proper divisors (215093220).

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

149912988 is a wasteful number, since it uses less digits than its factorization.

149912988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543193 (or 543191 counting only the distinct ones).

The product of its digits is 373248, while the sum is 51.

The square root of 149912988 is about 12243.8959485941. The cubic root of 149912988 is about 531.2265268890.

The spelling of 149912988 in words is "one hundred forty-nine million, nine hundred twelve thousand, nine hundred eighty-eight".