1142365157 has 2 divisors, whose sum is σ = 1142365158. Its totient is φ = 1142365156.

The previous prime is 1142365123. The next prime is 1142365163. The reversal of 1142365157 is 7515632411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034329921 + 108035236 = 32161^2 + 10394^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142365157 - 2²⁰ = 1141316581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142365957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571182578 + 571182579.

It is an arithmetic number, because the mean of its divisors is an integer number (571182579).

Almost surely, 2^1142365157 is an apocalyptic number.

It is an amenable number.

1142365157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142365157 is an equidigital number, since it uses as much as digits as its factorization.

1142365157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 1142365157 is about 33798.8928368963. The cubic root of 1142365157 is about 1045.3658683946.

Adding to 1142365157 its reverse (7515632411), we get a palindrome (8657997568).

The spelling of 1142365157 in words is "one billion, one hundred forty-two million, three hundred sixty-five thousand, one hundred fifty-seven".