142173607 has 4 divisors (see below), whose sum is σ = 142198200. Its totient is φ = 142149016.

The previous prime is 142173569. The next prime is 142173611. The reversal of 142173607 is 706371241.

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 142173607 - 2²⁷ = 7955879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142173617) 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, 1644 + ... + 16942.

It is an arithmetic number, because the mean of its divisors is an integer number (35549550).

Almost surely, 2^142173607 is an apocalyptic number.

142173607 is a deficient number, since it is larger than the sum of its proper divisors (24593).

142173607 is an equidigital number, since it uses as much as digits as its factorization.

142173607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24592.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 142173607 is about 11923.6574506315. The cubic root of 142173607 is about 521.9228697027.

The spelling of 142173607 in words is "one hundred forty-two million, one hundred seventy-three thousand, six hundred seven".