1150431097 has 2 divisors, whose sum is σ = 1150431098. Its totient is φ = 1150431096.

The previous prime is 1150431067. The next prime is 1150431179. The reversal of 1150431097 is 7901340511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962302441 + 188128656 = 31021^2 + 13716^2 .

It is an emirp because it is prime and its reverse (7901340511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150431097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1150431067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575215548 + 575215549.

It is an arithmetic number, because the mean of its divisors is an integer number (575215549).

Almost surely, 2^1150431097 is an apocalyptic number.

It is an amenable number.

1150431097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150431097 is an equidigital number, since it uses as much as digits as its factorization.

1150431097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1150431097 is about 33918.0054985549. The cubic root of 1150431097 is about 1047.8204515479.

The spelling of 1150431097 in words is "one billion, one hundred fifty million, four hundred thirty-one thousand, ninety-seven".