142422100 has 36 divisors (see below), whose sum is σ = 325326400. Its totient is φ = 53969760.

The previous prime is 142422089. The next prime is 142422131. The reversal of 142422100 is 1224241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35580 + ... + 39379.

Almost surely, 2^142422100 is an apocalyptic number.

142422100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142422100 is an abundant number, since it is smaller than the sum of its proper divisors (182904300).

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

142422100 is a wasteful number, since it uses less digits than its factorization.

142422100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74992 (or 74985 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 142422100 is about 11934.0730683200. The cubic root of 142422100 is about 522.2267673933.

Adding to 142422100 its reverse (1224241), we get a palindrome (143646341).

The spelling of 142422100 in words is "one hundred forty-two million, four hundred twenty-two thousand, one hundred".