1312567001 has 4 divisors (see below), whose sum is σ = 1354907904. Its totient is φ = 1270226100.

The previous prime is 1312566977. The next prime is 1312567019. The reversal of 1312567001 is 1007652131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1007652131 = 131 ⋅7692001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312567001 is a prime.

It is a super-2 number, since 2×1312567001² = 3445664264228268002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312567031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21170405 + ... + 21170466.

It is an arithmetic number, because the mean of its divisors is an integer number (338726976).

Almost surely, 2^1312567001 is an apocalyptic number.

It is an amenable number.

1312567001 is a deficient number, since it is larger than the sum of its proper divisors (42340903).

1312567001 is an equidigital number, since it uses as much as digits as its factorization.

1312567001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42340902.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1312567001 is about 36229.3665553236. The cubic root of 1312567001 is about 1094.8984152684.

The spelling of 1312567001 in words is "one billion, three hundred twelve million, five hundred sixty-seven thousand, one".