1142053157 has 8 divisors (see below), whose sum is σ = 1318127232. Its totient is φ = 969210000.

The previous prime is 1142053097. The next prime is 1142053189. The reversal of 1142053157 is 7513502411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142053157 - 2²⁰ = 1141004581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142043157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806969 + ... + 808382.

It is an arithmetic number, because the mean of its divisors is an integer number (164765904).

Almost surely, 2^1142053157 is an apocalyptic number.

It is an amenable number.

1142053157 is a deficient number, since it is larger than the sum of its proper divisors (176074075).

1142053157 is a wasteful number, since it uses less digits than its factorization.

1142053157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615459.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1142053157 is about 33794.2769859040. The cubic root of 1142053157 is about 1045.2706904660.

Adding to 1142053157 its reverse (7513502411), we get a palindrome (8655555568).

The spelling of 1142053157 in words is "one billion, one hundred forty-two million, fifty-three thousand, one hundred fifty-seven".