1253401125 has 32 divisors (see below), whose sum is σ = 2088503040. Its totient is φ = 667569600.

The previous prime is 1253401111. The next prime is 1253401147. The reversal of 1253401125 is 5211043521.

It is a happy number.

It is not a de Polignac number, because 1253401125 - 2⁹ = 1253400613 is a prime.

It is a super-3 number, since 3×1253401125³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1253401095 and 1253401104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342807 + ... + 346443.

It is an arithmetic number, because the mean of its divisors is an integer number (65265720).

Almost surely, 2^1253401125 is an apocalyptic number.

1253401125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253401125 is a deficient number, since it is larger than the sum of its proper divisors (835101915).

1253401125 is an equidigital number, since it uses as much as digits as its factorization.

1253401125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574 (or 4564 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1253401125 is about 35403.4055565280. The cubic root of 1253401125 is about 1078.1934604710.

Adding to 1253401125 its reverse (5211043521), we get a palindrome (6464444646).

The spelling of 1253401125 in words is "one billion, two hundred fifty-three million, four hundred one thousand, one hundred twenty-five".