1315013453 has 4 divisors (see below), whose sum is σ = 1416168348. Its totient is φ = 1213858560.

The previous prime is 1315013449. The next prime is 1315013533. The reversal of 1315013453 is 3543105131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 237992329 + 1077021124 = 15427^2 + 32818^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315013453 - 2² = 1315013449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315013443) 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, 50577428 + ... + 50577453.

It is an arithmetic number, because the mean of its divisors is an integer number (354042087).

Almost surely, 2^1315013453 is an apocalyptic number.

1315013453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1315013453 is a deficient number, since it is larger than the sum of its proper divisors (101154895).

1315013453 is a wasteful number, since it uses less digits than its factorization.

1315013453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101154894.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1315013453 is about 36263.1142209270. The cubic root of 1315013453 is about 1095.5782418832.

Adding to 1315013453 its reverse (3543105131), we get a palindrome (4858118584).

The spelling of 1315013453 in words is "one billion, three hundred fifteen million, thirteen thousand, four hundred fifty-three".