1315145253 has 8 divisors (see below), whose sum is σ = 1754156448. Its totient is φ = 876448784.

The previous prime is 1315145243. The next prime is 1315145269. The reversal of 1315145253 is 3525415131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1315145253 - 2²¹ = 1313048101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1315145253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315145203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68751 + ... + 85772.

It is an arithmetic number, because the mean of its divisors is an integer number (219269556).

Almost surely, 2^1315145253 is an apocalyptic number.

It is an amenable number.

1315145253 is a deficient number, since it is larger than the sum of its proper divisors (439011195).

1315145253 is a wasteful number, since it uses less digits than its factorization.

1315145253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157363.

The product of its digits is 9000, while the sum is 30.

The square root of 1315145253 is about 36264.9314489908. The cubic root of 1315145253 is about 1095.6148428746.

The spelling of 1315145253 in words is "one billion, three hundred fifteen million, one hundred forty-five thousand, two hundred fifty-three".