142261138 has 8 divisors (see below), whose sum is σ = 216397440. Its totient is φ = 70128660.

The previous prime is 142261129. The next prime is 142261199. The reversal of 142261138 is 831162241.

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

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, 500778 + ... + 501061.

It is an arithmetic number, because the mean of its divisors is an integer number (27049680).

Almost surely, 2^142261138 is an apocalyptic number.

142261138 is a deficient number, since it is larger than the sum of its proper divisors (74136302).

142261138 is a wasteful number, since it uses less digits than its factorization.

142261138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001912.

The product of its digits is 2304, while the sum is 28.

The square root of 142261138 is about 11927.3273619868. The cubic root of 142261138 is about 522.0299572263.

The spelling of 142261138 in words is "one hundred forty-two million, two hundred sixty-one thousand, one hundred thirty-eight".