1312515142 has 8 divisors (see below), whose sum is σ = 1971986256. Its totient is φ = 655186392.

The previous prime is 1312515131. The next prime is 1312515163. The reversal of 1312515142 is 2415152131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534058 + ... + 536509.

It is an arithmetic number, because the mean of its divisors is an integer number (246498282).

Almost surely, 2^1312515142 is an apocalyptic number.

1312515142 is a deficient number, since it is larger than the sum of its proper divisors (659471114).

1312515142 is a wasteful number, since it uses less digits than its factorization.

1312515142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071182.

The product of its digits is 1200, while the sum is 25.

The square root of 1312515142 is about 36228.6508443249. The cubic root of 1312515142 is about 1094.8839954116.

Adding to 1312515142 its reverse (2415152131), we get a palindrome (3727667273).

The spelling of 1312515142 in words is "one billion, three hundred twelve million, five hundred fifteen thousand, one hundred forty-two".