2156304130 has 16 divisors (see below), whose sum is σ = 3986249400. Its totient is φ = 839210112.

The previous prime is 2156304121. The next prime is 2156304133. The reversal of 2156304130 is 314036512.

It can be written as a sum of positive squares in 4 ways, for example, as 1965946921 + 190357209 = 44339^2 + 13797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2156304095 and 2156304104.

It is not an unprimeable number, because it can be changed into a prime (2156304133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2913555 + ... + 2914294.

Almost surely, 2^2156304130 is an apocalyptic number.

2156304130 is a deficient number, since it is larger than the sum of its proper divisors (1829945270).

2156304130 is a wasteful number, since it uses less digits than its factorization.

2156304130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827893.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2156304130 is about 46436.0219011060. The cubic root of 2156304130 is about 1291.9231236228.

The spelling of 2156304130 in words is "two billion, one hundred fifty-six million, three hundred four thousand, one hundred thirty".