911211461 has 2 divisors, whose sum is σ = 911211462. Its totient is φ = 911211460.

The previous prime is 911211449. The next prime is 911211467. The reversal of 911211461 is 164112119.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474150625 + 437060836 = 21775^2 + 20906^2 .

It is a cyclic number.

It is not a de Polignac number, because 911211461 - 2⁶ = 911211397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 911211461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (911211467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455605730 + 455605731.

It is an arithmetic number, because the mean of its divisors is an integer number (455605731).

Almost surely, 2^911211461 is an apocalyptic number.

It is an amenable number.

911211461 is a deficient number, since it is larger than the sum of its proper divisors (1).

911211461 is an equidigital number, since it uses as much as digits as its factorization.

911211461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 26.

The square root of 911211461 is about 30186.2793500623. The cubic root of 911211461 is about 969.4819428717.

The spelling of 911211461 in words is "nine hundred eleven million, two hundred eleven thousand, four hundred sixty-one".