142432657 has 4 divisors (see below), whose sum is σ = 142493040. Its totient is φ = 142372276.

The previous prime is 142432651. The next prime is 142432679. The reversal of 142432657 is 756234241.

142432657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142432657 - 2²⁷ = 8214929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142432651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26503 + ... + 31420.

It is an arithmetic number, because the mean of its divisors is an integer number (35623260).

Almost surely, 2^142432657 is an apocalyptic number.

It is an amenable number.

142432657 is a deficient number, since it is larger than the sum of its proper divisors (60383).

142432657 is an equidigital number, since it uses as much as digits as its factorization.

142432657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60382.

The product of its digits is 40320, while the sum is 34.

The square root of 142432657 is about 11934.5153651080. The cubic root of 142432657 is about 522.2396703809.

Adding to 142432657 its reverse (756234241), we get a palindrome (898666898).

It can be divided in two parts, 14243 and 2657, that added together give a square (16900 = 130²).

The spelling of 142432657 in words is "one hundred forty-two million, four hundred thirty-two thousand, six hundred fifty-seven".