150661515 has 16 divisors (see below), whose sum is σ = 245145600. Its totient is φ = 78990432.

The previous prime is 150661513. The next prime is 150661529. The reversal of 150661515 is 515166051.

It is not a de Polignac number, because 150661515 - 2¹ = 150661513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (150661513) 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, 84235 + ... + 86004.

It is an arithmetic number, because the mean of its divisors is an integer number (15321600).

Almost surely, 2^150661515 is an apocalyptic number.

150661515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

150661515 is a deficient number, since it is larger than the sum of its proper divisors (94484085).

150661515 is a wasteful number, since it uses less digits than its factorization.

150661515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170306.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 150661515 is about 12274.4252411264. The cubic root of 150661515 is about 532.1092109540.

The spelling of 150661515 in words is "one hundred fifty million, six hundred sixty-one thousand, five hundred fifteen".