142722625 has 16 divisors (see below), whose sum is σ = 180133200. Its totient is φ = 112886400.

The previous prime is 142722617. The next prime is 142722673. The reversal of 142722625 is 526227241.

It can be written as a sum of positive squares in 8 ways, for example, as 48108096 + 94614529 = 6936^2 + 9727^2 .

It is not a de Polignac number, because 142722625 - 2³ = 142722617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4711 + ... + 17539.

It is an arithmetic number, because the mean of its divisors is an integer number (11258325).

Almost surely, 2^142722625 is an apocalyptic number.

It is an amenable number.

142722625 is a deficient number, since it is larger than the sum of its proper divisors (37410575).

142722625 is an equidigital number, since it uses as much as digits as its factorization.

142722625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12933 (or 12923 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 142722625 is about 11946.6574823253. The cubic root of 142722625 is about 522.5938263927.

Adding to 142722625 its reverse (526227241), we get a palindrome (668949866).

The spelling of 142722625 in words is "one hundred forty-two million, seven hundred twenty-two thousand, six hundred twenty-five".