2150121542 has 16 divisors (see below), whose sum is σ = 3326054400. Its totient is φ = 1041950280.

The previous prime is 2150121539. The next prime is 2150121553. The reversal of 2150121542 is 2451210512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119942 + ... + 136697.

It is an arithmetic number, because the mean of its divisors is an integer number (207878400).

Almost surely, 2^2150121542 is an apocalyptic number.

2150121542 is a deficient number, since it is larger than the sum of its proper divisors (1175932858).

2150121542 is a wasteful number, since it uses less digits than its factorization.

2150121542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256771.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2150121542 is about 46369.4030800484. The cubic root of 2150121542 is about 1290.6872011069.

The spelling of 2150121542 in words is "two billion, one hundred fifty million, one hundred twenty-one thousand, five hundred forty-two".