142211574 has 24 divisors (see below), whose sum is σ = 308496240. Its totient is φ = 47346768.

The previous prime is 142211549. The next prime is 142211581. The reversal of 142211574 is 475112241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12244 + ... + 20840.

It is an arithmetic number, because the mean of its divisors is an integer number (12854010).

Almost surely, 2^142211574 is an apocalyptic number.

142211574 is an abundant number, since it is smaller than the sum of its proper divisors (166284666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142211574 is a wasteful number, since it uses less digits than its factorization.

142211574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524 (or 9521 counting only the distinct ones).

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

The square root of 142211574 is about 11925.2494313536. The cubic root of 142211574 is about 521.9693248368.

It can be divided in two parts, 1422 and 11574, that added together give a square (12996 = 114²).

The spelling of 142211574 in words is "one hundred forty-two million, two hundred eleven thousand, five hundred seventy-four".