253540132 has 48 divisors (see below), whose sum is σ = 479106432. Its totient is φ = 117089280.

The previous prime is 253540121. The next prime is 253540163. The reversal of 253540132 is 231045352.

It is a junction number, because it is equal to n+sod(n) for n = 253540097 and 253540106.

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, 718068 + ... + 718420.

It is an arithmetic number, because the mean of its divisors is an integer number (9981384).

Almost surely, 2^253540132 is an apocalyptic number.

It is an amenable number.

253540132 is a deficient number, since it is larger than the sum of its proper divisors (225566300).

253540132 is a wasteful number, since it uses less digits than its factorization.

253540132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 253540132 is about 15922.9435720912. The cubic root of 253540132 is about 632.9201233245.

Adding to 253540132 its reverse (231045352), we get a palindrome (484585484).

The spelling of 253540132 in words is "two hundred fifty-three million, five hundred forty thousand, one hundred thirty-two".