142821292 has 12 divisors (see below), whose sum is σ = 250241040. Its totient is φ = 71323856.

The previous prime is 142821281. The next prime is 142821319. The reversal of 142821292 is 292128241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17923 + ... + 24634.

It is an arithmetic number, because the mean of its divisors is an integer number (20853420).

Almost surely, 2^142821292 is an apocalyptic number.

It is an amenable number.

142821292 is a deficient number, since it is larger than the sum of its proper divisors (107419748).

142821292 is a wasteful number, since it uses less digits than its factorization.

142821292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43400 (or 43398 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 142821292 is about 11950.7862502850. The cubic root of 142821292 is about 522.7142251674.

The spelling of 142821292 in words is "one hundred forty-two million, eight hundred twenty-one thousand, two hundred ninety-two".