3156464989 has 2 divisors, whose sum is σ = 3156464990. Its totient is φ = 3156464988.

The previous prime is 3156464897. The next prime is 3156465019. The reversal of 3156464989 is 9894646513.

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., 3116988900 + 39476089 = 55830^2 + 6283^2 .

It is a cyclic number.

It is not a de Polignac number, because 3156464989 - 2²¹ = 3154367837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3156464189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1578232494 + 1578232495.

It is an arithmetic number, because the mean of its divisors is an integer number (1578232495).

Almost surely, 2^3156464989 is an apocalyptic number.

It is an amenable number.

3156464989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3156464989 is an equidigital number, since it uses as much as digits as its factorization.

3156464989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 55.

The square root of 3156464989 is about 56182.4259800162. The cubic root of 3156464989 is about 1466.8993817085.

The spelling of 3156464989 in words is "three billion, one hundred fifty-six million, four hundred sixty-four thousand, nine hundred eighty-nine".