142157258 has 8 divisors (see below), whose sum is σ = 220114560. Its totient is φ = 68785740.

The previous prime is 142157251. The next prime is 142157263. The reversal of 142157258 is 852751241.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142157251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146368 + ... + 1146491.

It is an arithmetic number, because the mean of its divisors is an integer number (27514320).

Almost surely, 2^142157258 is an apocalyptic number.

142157258 is a deficient number, since it is larger than the sum of its proper divisors (77957302).

142157258 is a wasteful number, since it uses less digits than its factorization.

142157258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292892.

The product of its digits is 22400, while the sum is 35.

The square root of 142157258 is about 11922.9718610756. The cubic root of 142157258 is about 521.9028630731.

The spelling of 142157258 in words is "one hundred forty-two million, one hundred fifty-seven thousand, two hundred fifty-eight".