253421130 has 32 divisors (see below), whose sum is σ = 634656384. Its totient is φ = 64640576.

The previous prime is 253421117. The next prime is 253421131. The reversal of 253421130 is 31124352.

It is a junction number, because it is equal to n+sod(n) for n = 253421097 and 253421106.

It is not an unprimeable number, because it can be changed into a prime (253421131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182949 + ... + 184328.

It is an arithmetic number, because the mean of its divisors is an integer number (19833012).

Almost surely, 2^253421130 is an apocalyptic number.

253421130 is an abundant number, since it is smaller than the sum of its proper divisors (381235254).

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

253421130 is a wasteful number, since it uses less digits than its factorization.

253421130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367310.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 253421130 is about 15919.2063244372. The cubic root of 253421130 is about 632.8210850291.

Adding to 253421130 its reverse (31124352), we get a palindrome (284545482).

The spelling of 253421130 in words is "two hundred fifty-three million, four hundred twenty-one thousand, one hundred thirty".