1150331997 has 8 divisors (see below), whose sum is σ = 1536044256. Its totient is φ = 765753872.

The previous prime is 1150331993. The next prime is 1150332019. The reversal of 1150331997 is 7991330511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1150331997 - 2² = 1150331993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150331993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281163 + ... + 285224.

It is an arithmetic number, because the mean of its divisors is an integer number (192005532).

Almost surely, 2^1150331997 is an apocalyptic number.

It is an amenable number.

1150331997 is a deficient number, since it is larger than the sum of its proper divisors (385712259).

1150331997 is an equidigital number, since it uses as much as digits as its factorization.

1150331997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567067.

The product of its (nonzero) digits is 25515, while the sum is 39.

The square root of 1150331997 is about 33916.5445910989. The cubic root of 1150331997 is about 1047.7903636997.

The spelling of 1150331997 in words is "one billion, one hundred fifty million, three hundred thirty-one thousand, nine hundred ninety-seven".