1142132457 has 8 divisors (see below), whose sum is σ = 1551576384. Its totient is φ = 747055088.

The previous prime is 1142132419. The next prime is 1142132489. The reversal of 1142132457 is 7542312411.

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 1142132457 - 2⁶ = 1142132393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142132857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3591453 + ... + 3591770.

It is an arithmetic number, because the mean of its divisors is an integer number (193947048).

Almost surely, 2^1142132457 is an apocalyptic number.

It is an amenable number.

1142132457 is a deficient number, since it is larger than the sum of its proper divisors (409443927).

1142132457 is an equidigital number, since it uses as much as digits as its factorization.

1142132457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7183279.

The product of its digits is 6720, while the sum is 30.

The square root of 1142132457 is about 33795.4502411197. The cubic root of 1142132457 is about 1045.2948831657.

Adding to 1142132457 its reverse (7542312411), we get a palindrome (8684444868).

The spelling of 1142132457 in words is "one billion, one hundred forty-two million, one hundred thirty-two thousand, four hundred fifty-seven".