1253122460 has 48 divisors (see below), whose sum is σ = 2738365056. Its totient is φ = 481308672.

The previous prime is 1253122441. The next prime is 1253122471. The reversal of 1253122460 is 642213521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 37244 + ... + 62396.

It is an arithmetic number, because the mean of its divisors is an integer number (57049272).

Almost surely, 2^1253122460 is an apocalyptic number.

1253122460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253122460 is an abundant number, since it is smaller than the sum of its proper divisors (1485242596).

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

1253122460 is a wasteful number, since it uses less digits than its factorization.

1253122460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25262 (or 25260 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1253122460 is about 35399.4697700403. The cubic root of 1253122460 is about 1078.1135506843.

Adding to 1253122460 its reverse (642213521), we get a palindrome (1895335981).

The spelling of 1253122460 in words is "one billion, two hundred fifty-three million, one hundred twenty-two thousand, four hundred sixty".