1406312811613 has 2 divisors, whose sum is σ = 1406312811614. Its totient is φ = 1406312811612.

The previous prime is 1406312811577. The next prime is 1406312811661. The reversal of 1406312811613 is 3161182136041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1325692023769 + 80620787844 = 1151387^2 + 283938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406312811613 - 2¹³ = 1406312803421 is a prime.

It is a super-2 number, since 2×1406312811613² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406312815613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703156405806 + 703156405807.

It is an arithmetic number, because the mean of its divisors is an integer number (703156405807).

Almost surely, 2^{1406312811613} is an apocalyptic number.

It is an amenable number.

1406312811613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406312811613 is an equidigital number, since it uses as much as digits as its factorization.

1406312811613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

Adding to 1406312811613 its reverse (3161182136041), we get a palindrome (4567494947654).

The spelling of 1406312811613 in words is "one trillion, four hundred six billion, three hundred twelve million, eight hundred eleven thousand, six hundred thirteen".