1253015323 has 16 divisors (see below), whose sum is σ = 1473292224. Its totient is φ = 1043159040.

The previous prime is 1253015237. The next prime is 1253015329. The reversal of 1253015323 is 3235103521.

It is a de Polignac number, because none of the positive numbers 2^k-1253015323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253015329) 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, 155883 + ... + 163723.

It is an arithmetic number, because the mean of its divisors is an integer number (92080764).

Almost surely, 2^1253015323 is an apocalyptic number.

1253015323 is a deficient number, since it is larger than the sum of its proper divisors (220276901).

1253015323 is an equidigital number, since it uses as much as digits as its factorization.

1253015323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8502.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1253015323 is about 35397.9564805654. The cubic root of 1253015323 is about 1078.0828249978.

Adding to 1253015323 its reverse (3235103521), we get a palindrome (4488118844).

The spelling of 1253015323 in words is "one billion, two hundred fifty-three million, fifteen thousand, three hundred twenty-three".