149902515 has 192 divisors, whose sum is σ = 346705920. Its totient is φ = 60963840.

The previous prime is 149902499. The next prime is 149902547. The reversal of 149902515 is 515209941.

It is not a de Polignac number, because 149902515 - 2⁴ = 149902499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149902515.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3486084 + ... + 3486126.

It is an arithmetic number, because the mean of its divisors is an integer number (1805760).

Almost surely, 2^149902515 is an apocalyptic number.

149902515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149902515 is an abundant number, since it is smaller than the sum of its proper divisors (196803405).

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

149902515 is a wasteful number, since it uses less digits than its factorization.

149902515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 149902515 is about 12243.4682586267. The cubic root of 149902515 is about 531.2141560130.

The spelling of 149902515 in words is "one hundred forty-nine million, nine hundred two thousand, five hundred fifteen".