1153431097 has 32 divisors (see below), whose sum is σ = 1459180800. Its totient is φ = 887362560.

The previous prime is 1153430951. The next prime is 1153431101. The reversal of 1153431097 is 7901343511.

It is a happy number.

It is not a de Polignac number, because 1153431097 - 2²⁷ = 1019213369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153731097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1099029 + ... + 1100077.

It is an arithmetic number, because the mean of its divisors is an integer number (45599400).

Almost surely, 2^1153431097 is an apocalyptic number.

It is an amenable number.

1153431097 is a deficient number, since it is larger than the sum of its proper divisors (305749703).

1153431097 is a wasteful number, since it uses less digits than its factorization.

1153431097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1153431097 is about 33962.2010034685. The cubic root of 1153431097 is about 1048.7304677711.

The spelling of 1153431097 in words is "one billion, one hundred fifty-three million, four hundred thirty-one thousand, ninety-seven".