1167506449 has 2 divisors, whose sum is σ = 1167506450. Its totient is φ = 1167506448.

The previous prime is 1167506443. The next prime is 1167506551. The reversal of 1167506449 is 9446057611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1034265600 + 133240849 = 32160^2 + 11543^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167506449 - 2³ = 1167506441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1167506441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583753224 + 583753225.

It is an arithmetic number, because the mean of its divisors is an integer number (583753225).

Almost surely, 2^1167506449 is an apocalyptic number.

It is an amenable number.

1167506449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167506449 is an equidigital number, since it uses as much as digits as its factorization.

1167506449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1167506449 is about 34168.7934964055. The cubic root of 1167506449 is about 1052.9791279423.

The spelling of 1167506449 in words is "one billion, one hundred sixty-seven million, five hundred six thousand, four hundred forty-nine".