142588057 has 4 divisors (see below), whose sum is σ = 144190260. Its totient is φ = 140985856.

The previous prime is 142588031. The next prime is 142588079. The reversal of 142588057 is 750885241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27154521 + 115433536 = 5211^2 + 10744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142588057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142588087) 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, 800968 + ... + 801145.

It is an arithmetic number, because the mean of its divisors is an integer number (36047565).

Almost surely, 2^142588057 is an apocalyptic number.

It is an amenable number.

142588057 is a deficient number, since it is larger than the sum of its proper divisors (1602203).

142588057 is an equidigital number, since it uses as much as digits as its factorization.

142588057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602202.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 142588057 is about 11941.0241185587. The cubic root of 142588057 is about 522.4295298076.

The spelling of 142588057 in words is "one hundred forty-two million, five hundred eighty-eight thousand, fifty-seven".