3130212157 has 2 divisors, whose sum is σ = 3130212158. Its totient is φ = 3130212156.

The previous prime is 3130212109. The next prime is 3130212161. The reversal of 3130212157 is 7512120313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2774550276 + 355661881 = 52674^2 + 18859^2 .

It is an emirp because it is prime and its reverse (7512120313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3130212157 - 2²⁷ = 2995994429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3130212257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565106078 + 1565106079.

It is an arithmetic number, because the mean of its divisors is an integer number (1565106079).

Almost surely, 2^3130212157 is an apocalyptic number.

It is an amenable number.

3130212157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3130212157 is an equidigital number, since it uses as much as digits as its factorization.

3130212157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 3130212157 is about 55948.2989643117. The cubic root of 3130212157 is about 1462.8212410658.

The spelling of 3130212157 in words is "three billion, one hundred thirty million, two hundred twelve thousand, one hundred fifty-seven".