142112457 has 12 divisors (see below), whose sum is σ = 216077680. Its totient is φ = 89755128.

The previous prime is 142112447. The next prime is 142112461. The reversal of 142112457 is 754211241.

142112457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142112457 - 2²² = 137918153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142112457.

It is not an unprimeable number, because it can be changed into a prime (142112417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415363 + ... + 415704.

Almost surely, 2^142112457 is an apocalyptic number.

It is an amenable number.

142112457 is a deficient number, since it is larger than the sum of its proper divisors (73965223).

142112457 is a wasteful number, since it uses less digits than its factorization.

142112457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831092 (or 831089 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 142112457 is about 11921.0929448604. The cubic root of 142112457 is about 521.8480312453.

Adding to 142112457 its reverse (754211241), we get a palindrome (896323698).

The spelling of 142112457 in words is "one hundred forty-two million, one hundred twelve thousand, four hundred fifty-seven".