142920067 has 4 divisors (see below), whose sum is σ = 142944480. Its totient is φ = 142895656.

The previous prime is 142920061. The next prime is 142920079. The reversal of 142920067 is 760029241.

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 142920067 - 2¹⁵ = 142887299 is a prime.

It is a super-2 number, since 2×142920067² = 40852291102568978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142920061) 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, 2409 + ... + 17077.

It is an arithmetic number, because the mean of its divisors is an integer number (35736120).

Almost surely, 2^142920067 is an apocalyptic number.

142920067 is a deficient number, since it is larger than the sum of its proper divisors (24413).

142920067 is an equidigital number, since it uses as much as digits as its factorization.

142920067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24412.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 142920067 is about 11954.9181092971. The cubic root of 142920067 is about 522.8347002001.

The spelling of 142920067 in words is "one hundred forty-two million, nine hundred twenty thousand, sixty-seven".