149831580 has 24 divisors (see below), whose sum is σ = 419528592. Its totient is φ = 39955072.

The previous prime is 149831579. The next prime is 149831597. The reversal of 149831580 is 85138941.

149831580 is digitally balanced in base 3, 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1248537 + ... + 1248656.

It is an arithmetic number, because the mean of its divisors is an integer number (17480358).

Almost surely, 2^149831580 is an apocalyptic number.

149831580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149831580 is an abundant number, since it is smaller than the sum of its proper divisors (269697012).

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

149831580 is a wasteful number, since it uses less digits than its factorization.

149831580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497205 (or 2497203 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 149831580 is about 12240.5710651097. The cubic root of 149831580 is about 531.1303512784.

The spelling of 149831580 in words is "one hundred forty-nine million, eight hundred thirty-one thousand, five hundred eighty".