2162156074 has 32 divisors (see below), whose sum is σ = 3701330640. Its totient is φ = 939993600.

The previous prime is 2162156071. The next prime is 2162156107. The reversal of 2162156074 is 4706512612.

It can be written as a sum of positive squares in 8 ways, for example, as 18003049 + 2144153025 = 4243^2 + 46305^2 .

It is not an unprimeable number, because it can be changed into a prime (2162156071) 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, 4057 + ... + 65884.

Almost surely, 2^2162156074 is an apocalyptic number.

2162156074 is a deficient number, since it is larger than the sum of its proper divisors (1539174566).

2162156074 is a wasteful number, since it uses less digits than its factorization.

2162156074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70026.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2162156074 is about 46498.9900320426. The cubic root of 2162156074 is about 1293.0907747522.

Adding to 2162156074 its reverse (4706512612), we get a palindrome (6868668686).

The spelling of 2162156074 in words is "two billion, one hundred sixty-two million, one hundred fifty-six thousand, seventy-four".