142641867 has 8 divisors (see below), whose sum is σ = 190268224. Its totient is φ = 95055048.

The previous prime is 142641859. The next prime is 142641887. The reversal of 142641867 is 768146241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142641867 - 2³ = 142641859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142641827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 16890.

It is an arithmetic number, because the mean of its divisors is an integer number (23783528).

Almost surely, 2^142641867 is an apocalyptic number.

142641867 is a deficient number, since it is larger than the sum of its proper divisors (47626357).

142641867 is a wasteful number, since it uses less digits than its factorization.

142641867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19769.

The product of its digits is 64512, while the sum is 39.

The square root of 142641867 is about 11943.2770628500. The cubic root of 142641867 is about 522.4952398397.

The spelling of 142641867 in words is "one hundred forty-two million, six hundred forty-one thousand, eight hundred sixty-seven".