142412657 has 12 divisors (see below), whose sum is σ = 151504080. Its totient is φ = 133495488.

The previous prime is 142412623. The next prime is 142412663. The reversal of 142412657 is 756214241.

142412657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-142412657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142415657) 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, 242318 + ... + 242904.

It is an arithmetic number, because the mean of its divisors is an integer number (12625340).

Almost surely, 2^142412657 is an apocalyptic number.

It is an amenable number.

142412657 is a deficient number, since it is larger than the sum of its proper divisors (9091423).

142412657 is an equidigital number, since it uses as much as digits as its factorization.

142412657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 719 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 142412657 is about 11933.6774298621. The cubic root of 142412657 is about 522.2152254197.

Adding to 142412657 its reverse (756214241), we get a palindrome (898626898).

The spelling of 142412657 in words is "one hundred forty-two million, four hundred twelve thousand, six hundred fifty-seven".