1157250297 has 48 divisors (see below), whose sum is σ = 1851921792. Its totient is φ = 640523520.

The previous prime is 1157250287. The next prime is 1157250301. The reversal of 1157250297 is 7920527511.

It is a happy number.

It is not a de Polignac number, because 1157250297 - 2⁸ = 1157250041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157250247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 945628 + ... + 946850.

It is an arithmetic number, because the mean of its divisors is an integer number (38581704).

Almost surely, 2^1157250297 is an apocalyptic number.

It is an amenable number.

1157250297 is a deficient number, since it is larger than the sum of its proper divisors (694671495).

1157250297 is a wasteful number, since it uses less digits than its factorization.

1157250297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 1157250297 is about 34018.3817516354. The cubic root of 1157250297 is about 1049.8866988857.

The spelling of 1157250297 in words is "one billion, one hundred fifty-seven million, two hundred fifty thousand, two hundred ninety-seven".