1315132726 has 16 divisors (see below), whose sum is σ = 2025066384. Its totient is φ = 640209024.

The previous prime is 1315132723. The next prime is 1315132729. The reversal of 1315132726 is 6272315131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1315132723) and next prime (1315132729).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315132723) 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, 2490 + ... + 51346.

It is an arithmetic number, because the mean of its divisors is an integer number (126566649).

Almost surely, 2^1315132726 is an apocalyptic number.

1315132726 is a deficient number, since it is larger than the sum of its proper divisors (709933658).

1315132726 is a wasteful number, since it uses less digits than its factorization.

1315132726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49215.

The product of its digits is 7560, while the sum is 31.

The square root of 1315132726 is about 36264.7587335143. The cubic root of 1315132726 is about 1095.6113642194.

Adding to 1315132726 its reverse (6272315131), we get a palindrome (7587447857).

The spelling of 1315132726 in words is "one billion, three hundred fifteen million, one hundred thirty-two thousand, seven hundred twenty-six".