1312345037 has 2 divisors, whose sum is σ = 1312345038. Its totient is φ = 1312345036.

The previous prime is 1312345019. The next prime is 1312345051. The reversal of 1312345037 is 7305432131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1305449161 + 6895876 = 36131^2 + 2626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312345037 - 2¹⁰ = 1312344013 is a prime.

It is a super-2 number, since 2×1312345037² = 3444498992277062738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312345007) 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 as a sum of consecutive naturals, namely, 656172518 + 656172519.

It is an arithmetic number, because the mean of its divisors is an integer number (656172519).

Almost surely, 2^1312345037 is an apocalyptic number.

It is an amenable number.

1312345037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312345037 is an equidigital number, since it uses as much as digits as its factorization.

1312345037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 1312345037 is about 36226.3031097571. The cubic root of 1312345037 is about 1094.8366935348.

Adding to 1312345037 its reverse (7305432131), we get a palindrome (8617777168).

The spelling of 1312345037 in words is "one billion, three hundred twelve million, three hundred forty-five thousand, thirty-seven".