1152490649 has 2 divisors, whose sum is σ = 1152490650. Its totient is φ = 1152490648.

The previous prime is 1152490621. The next prime is 1152490697. The reversal of 1152490649 is 9460942511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 679123600 + 473367049 = 26060^2 + 21757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152490649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1152490949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576245324 + 576245325.

It is an arithmetic number, because the mean of its divisors is an integer number (576245325).

Almost surely, 2^1152490649 is an apocalyptic number.

It is an amenable number.

1152490649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152490649 is an equidigital number, since it uses as much as digits as its factorization.

1152490649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1152490649 is about 33948.3526699014. The cubic root of 1152490649 is about 1048.4453634281.

The spelling of 1152490649 in words is "one billion, one hundred fifty-two million, four hundred ninety thousand, six hundred forty-nine".