253402122 has 32 divisors (see below), whose sum is σ = 537306624. Its totient is φ = 79531200.

The previous prime is 253402103. The next prime is 253402129. The reversal of 253402122 is 221204352.

It is not an unprimeable number, because it can be changed into a prime (253402129) 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 15 ways as a sum of consecutive naturals, for example, 11529 + ... + 25292.

It is an arithmetic number, because the mean of its divisors is an integer number (16790832).

Almost surely, 2^253402122 is an apocalyptic number.

253402122 is an abundant number, since it is smaller than the sum of its proper divisors (283904502).

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

253402122 is a wasteful number, since it uses less digits than its factorization.

253402122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36894.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 253402122 is about 15918.6092985537. The cubic root of 253402122 is about 632.8052629284.

Adding to 253402122 its reverse (221204352), we get a palindrome (474606474).

The spelling of 253402122 in words is "two hundred fifty-three million, four hundred two thousand, one hundred twenty-two".