142542291 has 16 divisors (see below), whose sum is σ = 196834176. Its totient is φ = 91693056.

The previous prime is 142542277. The next prime is 142542319. The reversal of 142542291 is 192245241.

It is not a de Polignac number, because 142542291 - 2⁹ = 142541779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142542251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4051 + ... + 17363.

It is an arithmetic number, because the mean of its divisors is an integer number (12302136).

Almost surely, 2^142542291 is an apocalyptic number.

142542291 is a deficient number, since it is larger than the sum of its proper divisors (54291885).

142542291 is a wasteful number, since it uses less digits than its factorization.

142542291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13442.

The product of its digits is 5760, while the sum is 30.

The square root of 142542291 is about 11939.1076299697. The cubic root of 142542291 is about 522.3736296878.

The spelling of 142542291 in words is "one hundred forty-two million, five hundred forty-two thousand, two hundred ninety-one".