1156114621 has 2 divisors, whose sum is σ = 1156114622. Its totient is φ = 1156114620.

The previous prime is 1156114607. The next prime is 1156114627. The reversal of 1156114621 is 1264116511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1102970521 + 53144100 = 33211^2 + 7290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156114621 - 2¹⁹ = 1155590333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1156114621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156114627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578057310 + 578057311.

It is an arithmetic number, because the mean of its divisors is an integer number (578057311).

Almost surely, 2^1156114621 is an apocalyptic number.

It is an amenable number.

1156114621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156114621 is an equidigital number, since it uses as much as digits as its factorization.

1156114621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 28.

The square root of 1156114621 is about 34001.6855611601. The cubic root of 1156114621 is about 1049.5431484954.

The spelling of 1156114621 in words is "one billion, one hundred fifty-six million, one hundred fourteen thousand, six hundred twenty-one".