149890056 has 32 divisors (see below), whose sum is σ = 377468640. Its totient is φ = 49597568.

The previous prime is 149890051. The next prime is 149890061. The reversal of 149890056 is 650098941.

It is an interprime number because it is at equal distance from previous prime (149890051) and next prime (149890061).

It is not an unprimeable number, because it can be changed into a prime (149890051) 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, 19506 + ... + 26081.

It is an arithmetic number, because the mean of its divisors is an integer number (11795895).

Almost surely, 2^149890056 is an apocalyptic number.

It is an amenable number.

149890056 is an abundant number, since it is smaller than the sum of its proper divisors (227578584).

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

149890056 is a wasteful number, since it uses less digits than its factorization.

149890056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45733 (or 45729 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 149890056 is about 12242.9594461470. The cubic root of 149890056 is about 531.1994384913.

The spelling of 149890056 in words is "one hundred forty-nine million, eight hundred ninety thousand, fifty-six".