142922025 has 27 divisors (see below), whose sum is σ = 256310821. Its totient is φ = 76129440.

The previous prime is 142921993. The next prime is 142922027. The reversal of 142922025 is 520229241.

It is a happy number.

The square root of 142922025 is 11955.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3493161 + 139428864 = 1869^2 + 11808^2 .

It is not a de Polignac number, because 142922025 - 2⁵ = 142921993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142922025.

It is not an unprimeable number, because it can be changed into a prime (142922027) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 178927 + ... + 179723.

Almost surely, 2^142922025 is an apocalyptic number.

142922025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142922025 is the 11955-th square number.

142922025 is the 5978-th centered octagonal number.

It is an amenable number.

142922025 is a deficient number, since it is larger than the sum of its proper divisors (113388796).

142922025 is an frugal number, since it uses more digits than its factorization.

142922025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The cubic root of 142922025 is about 522.8370877950.

The spelling of 142922025 in words is "one hundred forty-two million, nine hundred twenty-two thousand, twenty-five".