1142113657 has 2 divisors, whose sum is σ = 1142113658. Its totient is φ = 1142113656.

The previous prime is 1142113603. The next prime is 1142113697. The reversal of 1142113657 is 7563112411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121647081 + 20466576 = 33491^2 + 4524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142113657 - 2²³ = 1133725049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142113697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571056828 + 571056829.

It is an arithmetic number, because the mean of its divisors is an integer number (571056829).

Almost surely, 2^1142113657 is an apocalyptic number.

It is an amenable number.

1142113657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142113657 is an equidigital number, since it uses as much as digits as its factorization.

1142113657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 1142113657 is about 33795.1720960258. The cubic root of 1142113657 is about 1045.2891477972.

The spelling of 1142113657 in words is "one billion, one hundred forty-two million, one hundred thirteen thousand, six hundred fifty-seven".