149185320 has 32 divisors (see below), whose sum is σ = 447556320. Its totient is φ = 39782720.

The previous prime is 149185313. The next prime is 149185327. The reversal of 149185320 is 23581941.

It is an interprime number because it is at equal distance from previous prime (149185313) and next prime (149185327).

It is not an unprimeable number, because it can be changed into a prime (149185327) 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 7 ways as a sum of consecutive naturals, for example, 621486 + ... + 621725.

It is an arithmetic number, because the mean of its divisors is an integer number (13986135).

Almost surely, 2^149185320 is an apocalyptic number.

149185320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149185320 is an abundant number, since it is smaller than the sum of its proper divisors (298371000).

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

149185320 is a wasteful number, since it uses less digits than its factorization.

149185320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243225 (or 1243221 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 149185320 is about 12214.1442598325. The cubic root of 149185320 is about 530.3656193235.

The spelling of 149185320 in words is "one hundred forty-nine million, one hundred eighty-five thousand, three hundred twenty".