142813422 has 32 divisors (see below), whose sum is σ = 317757600. Its totient is φ = 47545344.

The previous prime is 142813421. The next prime is 142813427. The reversal of 142813422 is 224318241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142813421) 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, 75148 + ... + 77024.

It is an arithmetic number, because the mean of its divisors is an integer number (9929925).

Almost surely, 2^142813422 is an apocalyptic number.

142813422 is an abundant number, since it is smaller than the sum of its proper divisors (174944178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142813422 is a wasteful number, since it uses less digits than its factorization.

142813422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3291 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 142813422 is about 11950.4569787101. The cubic root of 142813422 is about 522.7046238060.

The spelling of 142813422 in words is "one hundred forty-two million, eight hundred thirteen thousand, four hundred twenty-two".