3147919157 has 2 divisors, whose sum is σ = 3147919158. Its totient is φ = 3147919156.

The previous prime is 3147919097. The next prime is 3147919163. The reversal of 3147919157 is 7519197413.

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., 3145975921 + 1943236 = 56089^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147919157 - 2¹⁰ = 3147918133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3147969157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573959578 + 1573959579.

It is an arithmetic number, because the mean of its divisors is an integer number (1573959579).

Almost surely, 2^3147919157 is an apocalyptic number.

It is an amenable number.

3147919157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147919157 is an equidigital number, since it uses as much as digits as its factorization.

3147919157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 47.

The square root of 3147919157 is about 56106.3201163648. The cubic root of 3147919157 is about 1465.5743545022.

The spelling of 3147919157 in words is "three billion, one hundred forty-seven million, nine hundred nineteen thousand, one hundred fifty-seven".