142422534 has 12 divisors (see below), whose sum is σ = 308582196. Its totient is φ = 47474172.

The previous prime is 142422491. The next prime is 142422541. The reversal of 142422534 is 435224241.

It is a junction number, because it is equal to n+sod(n) for n = 142422498 and 142422507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3956164 + ... + 3956199.

It is an arithmetic number, because the mean of its divisors is an integer number (25715183).

Almost surely, 2^142422534 is an apocalyptic number.

142422534 is an abundant number, since it is smaller than the sum of its proper divisors (166159662).

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

142422534 is a wasteful number, since it uses less digits than its factorization.

142422534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7912371 (or 7912368 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 142422534 is about 11934.0912515365. The cubic root of 142422534 is about 522.2272978498.

Adding to 142422534 its reverse (435224241), we get a palindrome (577646775).

The spelling of 142422534 in words is "one hundred forty-two million, four hundred twenty-two thousand, five hundred thirty-four".