142920499 has 4 divisors (see below), whose sum is σ = 145263520. Its totient is φ = 140577480.

The previous prime is 142920493. The next prime is 142920539. The reversal of 142920499 is 994029241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142920499 - 2²⁵ = 109366067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142920493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1171419 + ... + 1171540.

It is an arithmetic number, because the mean of its divisors is an integer number (36315880).

Almost surely, 2^142920499 is an apocalyptic number.

142920499 is a deficient number, since it is larger than the sum of its proper divisors (2343021).

142920499 is an equidigital number, since it uses as much as digits as its factorization.

142920499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343020.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 142920499 is about 11954.9361771613. The cubic root of 142920499 is about 522.8352269849.

The spelling of 142920499 in words is "one hundred forty-two million, nine hundred twenty thousand, four hundred ninety-nine".