1315243402 has 16 divisors (see below), whose sum is σ = 2152886400. Its totient is φ = 597651840.

The previous prime is 1315243393. The next prime is 1315243411. The reversal of 1315243402 is 2043425131.

It is an interprime number because it is at equal distance from previous prime (1315243393) and next prime (1315243411).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83599 + ... + 98077.

It is an arithmetic number, because the mean of its divisors is an integer number (134555400).

Almost surely, 2^1315243402 is an apocalyptic number.

1315243402 is a deficient number, since it is larger than the sum of its proper divisors (837642998).

1315243402 is a wasteful number, since it uses less digits than its factorization.

1315243402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18621.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1315243402 is about 36266.2846456595. The cubic root of 1315243402 is about 1095.6420973613.

Adding to 1315243402 its reverse (2043425131), we get a palindrome (3358668533).

The spelling of 1315243402 in words is "one billion, three hundred fifteen million, two hundred forty-three thousand, four hundred two".