149858990 has 32 divisors (see below), whose sum is σ = 276950016. Its totient is φ = 58364320.

The previous prime is 149858987. The next prime is 149858993. The reversal of 149858990 is 99858941.

It is an interprime number because it is at equal distance from previous prime (149858987) and next prime (149858993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149858993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57659 + ... + 60201.

It is an arithmetic number, because the mean of its divisors is an integer number (8654688).

Almost surely, 2^149858990 is an apocalyptic number.

149858990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149858990 is a deficient number, since it is larger than the sum of its proper divisors (127091026).

149858990 is a wasteful number, since it uses less digits than its factorization.

149858990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 149858990 is about 12241.6906512132. The cubic root of 149858990 is about 531.1627374088.

The spelling of 149858990 in words is "one hundred forty-nine million, eight hundred fifty-eight thousand, nine hundred ninety".