142492647 has 32 divisors (see below), whose sum is σ = 225239040. Its totient is φ = 79164000.

The previous prime is 142492633. The next prime is 142492681. The reversal of 142492647 is 746294241.

It is not a de Polignac number, because 142492647 - 2¹⁶ = 142427111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142492607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15772 + ... + 23102.

It is an arithmetic number, because the mean of its divisors is an integer number (7038720).

Almost surely, 2^142492647 is an apocalyptic number.

142492647 is a deficient number, since it is larger than the sum of its proper divisors (82746393).

142492647 is a wasteful number, since it uses less digits than its factorization.

142492647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7395.

The product of its digits is 96768, while the sum is 39.

The square root of 142492647 is about 11937.0283990615. The cubic root of 142492647 is about 522.3129793189.

The spelling of 142492647 in words is "one hundred forty-two million, four hundred ninety-two thousand, six hundred forty-seven".