150121539 has 8 divisors (see below), whose sum is σ = 222402320. Its totient is φ = 100081008.

The previous prime is 150121537. The next prime is 150121571. The reversal of 150121539 is 935121051.

150121539 is a `hidden beast` number, since 1 + 5 + 0 + 121 + 539 = 666.

It is not a de Polignac number, because 150121539 - 2¹ = 150121537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5560057 = 150121539 / (1 + 5 + 0 + 1 + 2 + 1 + 5 + 3 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150121537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2780002 + ... + 2780055.

It is an arithmetic number, because the mean of its divisors is an integer number (27800290).

Almost surely, 2^150121539 is an apocalyptic number.

150121539 is a deficient number, since it is larger than the sum of its proper divisors (72280781).

150121539 is an equidigital number, since it uses as much as digits as its factorization.

150121539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560066 (or 5560060 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 150121539 is about 12252.4095181315. The cubic root of 150121539 is about 531.4727508053.

The spelling of 150121539 in words is "one hundred fifty million, one hundred twenty-one thousand, five hundred thirty-nine".