461311481 has 2 divisors, whose sum is σ = 461311482. Its totient is φ = 461311480.

The previous prime is 461311441. The next prime is 461311489. The reversal of 461311481 is 184113164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405659881 + 55651600 = 20141^2 + 7460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461311481 is a prime.

It is a super-2 number, since 2×461311481² = 425616565004826722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461311489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230655740 + 230655741.

It is an arithmetic number, because the mean of its divisors is an integer number (230655741).

Almost surely, 2^461311481 is an apocalyptic number.

It is an amenable number.

461311481 is a deficient number, since it is larger than the sum of its proper divisors (1).

461311481 is an equidigital number, since it uses as much as digits as its factorization.

461311481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 461311481 is about 21478.1628869883. The cubic root of 461311481 is about 772.6771829589.

The spelling of 461311481 in words is "four hundred sixty-one million, three hundred eleven thousand, four hundred eighty-one".