1315054531 has 8 divisors (see below), whose sum is σ = 1527557984. Its totient is φ = 1108710720.

The previous prime is 1315054523. The next prime is 1315054547. The reversal of 1315054531 is 1354505131.

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 1315054531 - 2³ = 1315054523 is a prime.

It is a super-2 number, since 2×1315054531² = 3458736839007259922, which contains 22 as substring.

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 1315054531.

It is not an unprimeable number, because it can be changed into a prime (1315054231) 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, 1539450 + ... + 1540303.

It is an arithmetic number, because the mean of its divisors is an integer number (190944748).

Almost surely, 2^1315054531 is an apocalyptic number.

1315054531 is a deficient number, since it is larger than the sum of its proper divisors (212503453).

1315054531 is an equidigital number, since it uses as much as digits as its factorization.

1315054531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079821.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1315054531 is about 36263.6806047042. The cubic root of 1315054531 is about 1095.5896495471.

Adding to 1315054531 its reverse (1354505131), we get a palindrome (2669559662).

The spelling of 1315054531 in words is "one billion, three hundred fifteen million, fifty-four thousand, five hundred thirty-one".