149969880 has 224 divisors, whose sum is σ = 523328400. Its totient is φ = 38631168.

The previous prime is 149969879. The next prime is 149969891. The reversal of 149969880 is 88969941.

149969880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1078851 + ... + 1078989.

Almost surely, 2^149969880 is an apocalyptic number.

149969880 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 149969880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261664200).

149969880 is an abundant number, since it is smaller than the sum of its proper divisors (373358520).

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

149969880 is a wasteful number, since it uses less digits than its factorization.

149969880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 149969880 is about 12246.2190083307. The cubic root of 149969880 is about 531.2937185705.

The spelling of 149969880 in words is "one hundred forty-nine million, nine hundred sixty-nine thousand, eight hundred eighty".