142422825 has 24 divisors (see below), whose sum is σ = 236263648. Its totient is φ = 75703680.

The previous prime is 142422811. The next prime is 142422829. The reversal of 142422825 is 528224241.

142422825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142422825 - 2⁷ = 142422697 is a prime.

It is a super-2 number, since 2×142422825² = 40568522161961250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142422792 and 142422801.

It is not an unprimeable number, because it can be changed into a prime (142422829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20442 + ... + 26508.

Almost surely, 2^142422825 is an apocalyptic number.

142422825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142422825 is a deficient number, since it is larger than the sum of its proper divisors (93840823).

142422825 is a wasteful number, since it uses less digits than its factorization.

142422825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393 (or 6388 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 142422825 is about 11934.1034434934. The cubic root of 142422825 is about 522.2276535240.

The spelling of 142422825 in words is "one hundred forty-two million, four hundred twenty-two thousand, eight hundred twenty-five".