1315045533 has 4 divisors (see below), whose sum is σ = 1753394048. Its totient is φ = 876697020.

The previous prime is 1315045519. The next prime is 1315045549. The reversal of 1315045533 is 3355405131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1315045533 - 2¹⁸ = 1314783389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315045533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315045733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219174253 + ... + 219174258.

It is an arithmetic number, because the mean of its divisors is an integer number (438348512).

Almost surely, 2^1315045533 is an apocalyptic number.

It is an amenable number.

1315045533 is a deficient number, since it is larger than the sum of its proper divisors (438348515).

1315045533 is an equidigital number, since it uses as much as digits as its factorization.

1315045533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438348514.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1315045533 is about 36263.5565409682. The cubic root of 1315045533 is about 1095.5871507564.

The spelling of 1315045533 in words is "one billion, three hundred fifteen million, forty-five thousand, five hundred thirty-three".