1149515957 has 2 divisors, whose sum is σ = 1149515958. Its totient is φ = 1149515956.

The previous prime is 1149515953. The next prime is 1149515959. The reversal of 1149515957 is 7595159411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980879761 + 168636196 = 31319^2 + 12986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149515957 - 2² = 1149515953 is a prime.

Together with 1149515959, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149515953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574757978 + 574757979.

It is an arithmetic number, because the mean of its divisors is an integer number (574757979).

Almost surely, 2^1149515957 is an apocalyptic number.

It is an amenable number.

1149515957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149515957 is an equidigital number, since it uses as much as digits as its factorization.

1149515957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 47.

The square root of 1149515957 is about 33904.5123398052. The cubic root of 1149515957 is about 1047.5425392696.

The spelling of 1149515957 in words is "one billion, one hundred forty-nine million, five hundred fifteen thousand, nine hundred fifty-seven".