1315223045 has 8 divisors (see below), whose sum is σ = 1584136440. Its totient is φ = 1048265920.

The previous prime is 1315223017. The next prime is 1315223089. The reversal of 1315223045 is 5403225131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289 + 1315222756 = 17^2 + 36266^2 .

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

It is not a de Polignac number, because 1315223045 - 2⁶ = 1315222981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487586 + ... + 490275.

It is an arithmetic number, because the mean of its divisors is an integer number (198017055).

Almost surely, 2^1315223045 is an apocalyptic number.

It is an amenable number.

1315223045 is a deficient number, since it is larger than the sum of its proper divisors (268913395).

1315223045 is an equidigital number, since it uses as much as digits as its factorization.

1315223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978135.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1315223045 is about 36266.0039844480. The cubic root of 1315223045 is about 1095.6364446430.

Adding to 1315223045 its reverse (5403225131), we get a palindrome (6718448176).

The spelling of 1315223045 in words is "one billion, three hundred fifteen million, two hundred twenty-three thousand, forty-five".