1151287097 has 2 divisors, whose sum is σ = 1151287098. Its totient is φ = 1151287096.

The previous prime is 1151287069. The next prime is 1151287157. The reversal of 1151287097 is 7907821511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147109161 + 4177936 = 33869^2 + 2044^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151287097 - 2²⁰ = 1150238521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1151287997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575643548 + 575643549.

It is an arithmetic number, because the mean of its divisors is an integer number (575643549).

Almost surely, 2^1151287097 is an apocalyptic number.

It is an amenable number.

1151287097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151287097 is an equidigital number, since it uses as much as digits as its factorization.

1151287097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 41.

The square root of 1151287097 is about 33930.6218186464. The cubic root of 1151287097 is about 1048.0802706541.

The spelling of 1151287097 in words is "one billion, one hundred fifty-one million, two hundred eighty-seven thousand, ninety-seven".