2161227524 has 12 divisors (see below), whose sum is σ = 3782562000. Its totient is φ = 1080495528.

The previous prime is 2161227517. The next prime is 2161227533. The reversal of 2161227524 is 4257221612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21287 + ... + 69105.

It is an arithmetic number, because the mean of its divisors is an integer number (315213500).

Almost surely, 2^2161227524 is an apocalyptic number.

It is an amenable number.

2161227524 is a deficient number, since it is larger than the sum of its proper divisors (1621334476).

2161227524 is a wasteful number, since it uses less digits than its factorization.

2161227524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59122 (or 59120 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 2161227524 is about 46489.0043343585. The cubic root of 2161227524 is about 1292.9056398959.

The spelling of 2161227524 in words is "two billion, one hundred sixty-one million, two hundred twenty-seven thousand, five hundred twenty-four".