142031422 has 32 divisors (see below), whose sum is σ = 242716320. Its totient is φ = 61793280.

The previous prime is 142031399. The next prime is 142031423. The reversal of 142031422 is 224130241.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 142031422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142031423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118458 + ... + 119650.

It is an arithmetic number, because the mean of its divisors is an integer number (7584885).

Almost surely, 2^142031422 is an apocalyptic number.

142031422 is a deficient number, since it is larger than the sum of its proper divisors (100684898).

142031422 is a wasteful number, since it uses less digits than its factorization.

142031422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142031422 is about 11917.6936527165. The cubic root of 142031422 is about 521.7488234385.

Adding to 142031422 its reverse (224130241), we get a palindrome (366161663).

It can be divided in two parts, 14203 and 1422, that added together give a 6-th power (15625 = 5⁶).

The spelling of 142031422 in words is "one hundred forty-two million, thirty-one thousand, four hundred twenty-two".