149553830 has 16 divisors (see below), whose sum is σ = 269348544. Its totient is φ = 59787840.

The previous prime is 149553823. The next prime is 149553857. The reversal of 149553830 is 38355941.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 22490 + ... + 28370.

It is an arithmetic number, because the mean of its divisors is an integer number (16834284).

Almost surely, 2^149553830 is an apocalyptic number.

149553830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149553830 is a deficient number, since it is larger than the sum of its proper divisors (119794714).

149553830 is a wasteful number, since it uses less digits than its factorization.

149553830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8431.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 149553830 is about 12229.2203349191. The cubic root of 149553830 is about 530.8019543211.

The spelling of 149553830 in words is "one hundred forty-nine million, five hundred fifty-three thousand, eight hundred thirty".