1216467013 has 2 divisors, whose sum is σ = 1216467014. Its totient is φ = 1216467012.

The previous prime is 1216466969. The next prime is 1216467059. The reversal of 1216467013 is 3107646121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1179098244 + 37368769 = 34338^2 + 6113^2 .

It is a cyclic number.

It is not a de Polignac number, because 1216467013 - 2¹³ = 1216458821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1216465013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608233506 + 608233507.

It is an arithmetic number, because the mean of its divisors is an integer number (608233507).

Almost surely, 2^1216467013 is an apocalyptic number.

It is an amenable number.

1216467013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1216467013 is an equidigital number, since it uses as much as digits as its factorization.

1216467013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1216467013 is about 34877.8871636457. The cubic root of 1216467013 is about 1067.4972843527.

The spelling of 1216467013 in words is "one billion, two hundred sixteen million, four hundred sixty-seven thousand, thirteen".