1315042245 has 48 divisors (see below), whose sum is σ = 2490606144. Its totient is φ = 636576000.

The previous prime is 1315042243. The next prime is 1315042247. The reversal of 1315042245 is 5422405131.

1315042245 is a `hidden beast` number, since 131 + 504 + 2 + 24 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1315042243) and next prime (1315042247).

It is not a de Polignac number, because 1315042245 - 2¹ = 1315042243 is a prime.

It is a super-2 number, since 2×1315042245² = 3458672212269280050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315042243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 374950 + ... + 378440.

It is an arithmetic number, because the mean of its divisors is an integer number (51887628).

Almost surely, 2^1315042245 is an apocalyptic number.

1315042245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315042245 is a deficient number, since it is larger than the sum of its proper divisors (1175563899).

1315042245 is a wasteful number, since it uses less digits than its factorization.

1315042245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274 (or 4271 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1315042245 is about 36263.5112061698. The cubic root of 1315042245 is about 1095.5862376591.

Adding to 1315042245 its reverse (5422405131), we get a palindrome (6737447376).

The spelling of 1315042245 in words is "one billion, three hundred fifteen million, forty-two thousand, two hundred forty-five".