1312498722 has 8 divisors (see below), whose sum is σ = 2624997456. Its totient is φ = 437499572.

The previous prime is 1312498721. The next prime is 1312498727. The reversal of 1312498722 is 2278942131.

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

1312498722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1312498721) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 109374888 + ... + 109374899.

It is an arithmetic number, because the mean of its divisors is an integer number (328124682).

Almost surely, 2^1312498722 is an apocalyptic number.

1312498722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312498722 is a wasteful number, since it uses less digits than its factorization.

1312498722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218749792.

The product of its digits is 48384, while the sum is 39.

The square root of 1312498722 is about 36228.4242273936. The cubic root of 1312498722 is about 1094.8794296052.

The spelling of 1312498722 in words is "one billion, three hundred twelve million, four hundred ninety-eight thousand, seven hundred twenty-two".