142173854 has 8 divisors (see below), whose sum is σ = 215830440. Its totient is φ = 70230376.

The previous prime is 142173847. The next prime is 142173883. The reversal of 142173854 is 458371241.

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

It is a super-2 number, since 2×142173854² = 40426809522426632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428069 + ... + 428400.

It is an arithmetic number, because the mean of its divisors is an integer number (26978805).

Almost surely, 2^142173854 is an apocalyptic number.

142173854 is a deficient number, since it is larger than the sum of its proper divisors (73656586).

142173854 is an equidigital number, since it uses as much as digits as its factorization.

142173854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856554.

The product of its digits is 26880, while the sum is 35.

The square root of 142173854 is about 11923.6678081872. The cubic root of 142173854 is about 521.9231719502.

The spelling of 142173854 in words is "one hundred forty-two million, one hundred seventy-three thousand, eight hundred fifty-four".