142974252 has 36 divisors (see below), whose sum is σ = 361777416. Its totient is φ = 47609280.

The previous prime is 142974203. The next prime is 142974277. The reversal of 142974252 is 252479241.

142974252 is a `hidden beast` number, since 142 + 97 + 425 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 57352 + ... + 59792.

Almost surely, 2^142974252 is an apocalyptic number.

142974252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142974252 is an abundant number, since it is smaller than the sum of its proper divisors (218803164).

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

142974252 is a wasteful number, since it uses less digits than its factorization.

142974252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078 (or 4073 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 142974252 is about 11957.1841166723. The cubic root of 142974252 is about 522.9007656108.

The spelling of 142974252 in words is "one hundred forty-two million, nine hundred seventy-four thousand, two hundred fifty-two".