1253315045 has 16 divisors (see below), whose sum is σ = 1525970880. Its totient is φ = 988097664.

The previous prime is 1253315033. The next prime is 1253315047. The reversal of 1253315045 is 5405133521.

It is a cyclic number.

It is not a de Polignac number, because 1253315045 - 2⁸ = 1253314789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1253314999 and 1253315017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253315047) 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, 88634 + ... + 101796.

It is an arithmetic number, because the mean of its divisors is an integer number (95373180).

Almost surely, 2^1253315045 is an apocalyptic number.

It is an amenable number.

1253315045 is a deficient number, since it is larger than the sum of its proper divisors (272655835).

1253315045 is a wasteful number, since it uses less digits than its factorization.

1253315045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13444.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1253315045 is about 35402.1898333987. The cubic root of 1253315045 is about 1078.1687774928.

Adding to 1253315045 its reverse (5405133521), we get a palindrome (6658448566).

The spelling of 1253315045 in words is "one billion, two hundred fifty-three million, three hundred fifteen thousand, forty-five".