142122522 has 8 divisors (see below), whose sum is σ = 284245056. Its totient is φ = 47374172.

The previous prime is 142122517. The next prime is 142122529. The reversal of 142122522 is 225221241.

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

142122522 is an admirable number.

It is a super-2 number, since 2×142122522² = 40397622519280968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142122529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11843538 + ... + 11843549.

It is an arithmetic number, because the mean of its divisors is an integer number (35530632).

Almost surely, 2^142122522 is an apocalyptic number.

142122522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142122522 is a wasteful number, since it uses less digits than its factorization.

142122522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23687092.

The product of its digits is 640, while the sum is 21.

The square root of 142122522 is about 11921.5150882763. The cubic root of 142122522 is about 521.8603507762.

Adding to 142122522 its reverse (225221241), we get a palindrome (367343763).

The spelling of 142122522 in words is "one hundred forty-two million, one hundred twenty-two thousand, five hundred twenty-two".