1315213501 has 8 divisors (see below), whose sum is σ = 1506323520. Its totient is φ = 1124909088.

The previous prime is 1315213499. The next prime is 1315213547. The reversal of 1315213501 is 1053125131.

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 1315213501 - 2¹ = 1315213499 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 (1315213561) 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, 197896 + ... + 204433.

It is an arithmetic number, because the mean of its divisors is an integer number (188290440).

Almost surely, 2^1315213501 is an apocalyptic number.

It is an amenable number.

1315213501 is a deficient number, since it is larger than the sum of its proper divisors (191110019).

1315213501 is an equidigital number, since it uses as much as digits as its factorization.

1315213501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402803.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1315213501 is about 36265.8724009226. The cubic root of 1315213501 is about 1095.6337944513.

Adding to 1315213501 its reverse (1053125131), we get a palindrome (2368338632).

The spelling of 1315213501 in words is "one billion, three hundred fifteen million, two hundred thirteen thousand, five hundred one".