1351312001 has 6 divisors (see below), whose sum is σ = 1463255190. Its totient is φ = 1247364768.

The previous prime is 1351311959. The next prime is 1351312003. The reversal of 1351312001 is 1002131531.

It can be written as a sum of positive squares in 3 ways, for example, as 18696976 + 1332615025 = 4324^2 + 36505^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1351312001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351312003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3997796 + ... + 3998133.

It is an arithmetic number, because the mean of its divisors is an integer number (243875865).

Almost surely, 2^1351312001 is an apocalyptic number.

It is an amenable number.

1351312001 is a deficient number, since it is larger than the sum of its proper divisors (111943189).

1351312001 is an equidigital number, since it uses as much as digits as its factorization.

1351312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7995955 (or 7995942 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1351312001 is about 36760.1958781506. The cubic root of 1351312001 is about 1105.5673672257.

Adding to 1351312001 its reverse (1002131531), we get a palindrome (2353443532).

The spelling of 1351312001 in words is "one billion, three hundred fifty-one million, three hundred twelve thousand, one".