142251142 has 16 divisors (see below), whose sum is σ = 233140032. Its totient is φ = 64558120.

The previous prime is 142251133. The next prime is 142251143. The reversal of 142251142 is 241152241.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142251143) 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, 10293 + ... + 19759.

It is an arithmetic number, because the mean of its divisors is an integer number (14571252).

Almost surely, 2^142251142 is an apocalyptic number.

142251142 is a deficient number, since it is larger than the sum of its proper divisors (90888890).

142251142 is a wasteful number, since it uses less digits than its factorization.

142251142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163.

The product of its digits is 640, while the sum is 22.

The square root of 142251142 is about 11926.9083169110. The cubic root of 142251142 is about 522.0177301025.

The spelling of 142251142 in words is "one hundred forty-two million, two hundred fifty-one thousand, one hundred forty-two".