1172974613 has 2 divisors, whose sum is σ = 1172974614. Its totient is φ = 1172974612.

The previous prime is 1172974601. The next prime is 1172974643. The reversal of 1172974613 is 3164792711.

1172974613 = 24217² + 24218².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 586511524 + 586463089 = 24218^2 + 24217^2 .

It is an emirp because it is prime and its reverse (3164792711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1172974613 - 2¹⁴ = 1172958229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172974643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586487306 + 586487307.

It is an arithmetic number, because the mean of its divisors is an integer number (586487307).

Almost surely, 2^1172974613 is an apocalyptic number.

1172974613 is the 24218-th centered square number.

It is an amenable number.

1172974613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172974613 is an equidigital number, since it uses as much as digits as its factorization.

1172974613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 1172974613 is about 34248.7169540700. The cubic root of 1172974613 is about 1054.6204883696.

The spelling of 1172974613 in words is "one billion, one hundred seventy-two million, nine hundred seventy-four thousand, six hundred thirteen".