1316412949 has 2 divisors, whose sum is σ = 1316412950. Its totient is φ = 1316412948.

The previous prime is 1316412919. The next prime is 1316412991. The reversal of 1316412949 is 9492146131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 701720100 + 614692849 = 26490^2 + 24793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316412949 - 2¹⁹ = 1315888661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1316412919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658206474 + 658206475.

It is an arithmetic number, because the mean of its divisors is an integer number (658206475).

Almost surely, 2^1316412949 is an apocalyptic number.

It is an amenable number.

1316412949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316412949 is an equidigital number, since it uses as much as digits as its factorization.

1316412949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 1316412949 is about 36282.4055018407. The cubic root of 1316412949 is about 1095.9667585088.

The spelling of 1316412949 in words is "one billion, three hundred sixteen million, four hundred twelve thousand, nine hundred forty-nine".