32142457 has 4 divisors (see below), whose sum is σ = 32890000. Its totient is φ = 31394916.

The previous prime is 32142449. The next prime is 32142463. The reversal of 32142457 is 75424123.

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 32142457 - 2³ = 32142449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32142437) 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, 373707 + ... + 373792.

It is an arithmetic number, because the mean of its divisors is an integer number (8222500).

Almost surely, 2^32142457 is an apocalyptic number.

It is an amenable number.

32142457 is a deficient number, since it is larger than the sum of its proper divisors (747543).

32142457 is an equidigital number, since it uses as much as digits as its factorization.

32142457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747542.

The product of its digits is 6720, while the sum is 28.

The square root of 32142457 is about 5669.4318057456. The cubic root of 32142457 is about 317.9506304962.

It can be divided in two parts, 3214 and 2457, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 32142457 in words is "thirty-two million, one hundred forty-two thousand, four hundred fifty-seven".