1156650449 has 2 divisors, whose sum is σ = 1156650450. Its totient is φ = 1156650448.

The previous prime is 1156650433. The next prime is 1156650461. The reversal of 1156650449 is 9440566511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 714599824 + 442050625 = 26732^2 + 21025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156650449 - 2⁴ = 1156650433 is a prime.

It is a super-2 number, since 2×1156650449² = 2675680522343803202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1156650409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578325224 + 578325225.

It is an arithmetic number, because the mean of its divisors is an integer number (578325225).

Almost surely, 2^1156650449 is an apocalyptic number.

It is an amenable number.

1156650449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156650449 is an equidigital number, since it uses as much as digits as its factorization.

1156650449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1156650449 is about 34009.5640812992. The cubic root of 1156650449 is about 1049.7052684491.

The spelling of 1156650449 in words is "one billion, one hundred fifty-six million, six hundred fifty thousand, four hundred forty-nine".