3156621130 has 16 divisors (see below), whose sum is σ = 6118988904. Its totient is φ = 1165521600.

The previous prime is 3156621109. The next prime is 3156621137. The reversal of 3156621130 is 311266513.

3156621130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2448369361 + 708251769 = 49481^2 + 26613^2 .

It is not an unprimeable number, because it can be changed into a prime (3156621137) 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, 12140721 + ... + 12140980.

Almost surely, 2^3156621130 is an apocalyptic number.

3156621130 is a deficient number, since it is larger than the sum of its proper divisors (2962367774).

3156621130 is a wasteful number, since it uses less digits than its factorization.

3156621130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24281721.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3156621130 is about 56183.8155521677. The cubic root of 3156621130 is about 1466.9235690363.

Adding to 3156621130 its reverse (311266513), we get a palindrome (3467887643).

The spelling of 3156621130 in words is "three billion, one hundred fifty-six million, six hundred twenty-one thousand, one hundred thirty".