1253089245 has 32 divisors (see below), whose sum is σ = 2036047104. Its totient is φ = 658022400.

The previous prime is 1253089241. The next prime is 1253089247. The reversal of 1253089245 is 5429803521.

It is not a de Polignac number, because 1253089245 - 2² = 1253089241 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253089241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277405 + ... + 281885.

It is an arithmetic number, because the mean of its divisors is an integer number (63626472).

Almost surely, 2^1253089245 is an apocalyptic number.

1253089245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253089245 is a deficient number, since it is larger than the sum of its proper divisors (782957859).

1253089245 is a wasteful number, since it uses less digits than its factorization.

1253089245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1253089245 is about 35399.0006214865. Note that the first 3 decimals coincide. The cubic root of 1253089245 is about 1078.1040251832.

The spelling of 1253089245 in words is "one billion, two hundred fifty-three million, eighty-nine thousand, two hundred forty-five".