1151287157 has 2 divisors, whose sum is σ = 1151287158. Its totient is φ = 1151287156.

The previous prime is 1151287097. The next prime is 1151287169. The reversal of 1151287157 is 7517821511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1146093316 + 5193841 = 33854^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151287157 - 2⁸ = 1151286901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1151287157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151287177) 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 as a sum of consecutive naturals, namely, 575643578 + 575643579.

It is an arithmetic number, because the mean of its divisors is an integer number (575643579).

Almost surely, 2^1151287157 is an apocalyptic number.

It is an amenable number.

1151287157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151287157 is an equidigital number, since it uses as much as digits as its factorization.

1151287157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19600, while the sum is 38.

The square root of 1151287157 is about 33930.6227028034. The cubic root of 1151287157 is about 1048.0802888612.

The spelling of 1151287157 in words is "one billion, one hundred fifty-one million, two hundred eighty-seven thousand, one hundred fifty-seven".