40122461 has 2 divisors, whose sum is σ = 40122462. Its totient is φ = 40122460.

The previous prime is 40122437. The next prime is 40122473. The reversal of 40122461 is 16422104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37283236 + 2839225 = 6106^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 40122461 - 2¹⁰ = 40121437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40112461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20061230 + 20061231.

It is an arithmetic number, because the mean of its divisors is an integer number (20061231).

Almost surely, 2^40122461 is an apocalyptic number.

It is an amenable number.

40122461 is a deficient number, since it is larger than the sum of its proper divisors (1).

40122461 is an equidigital number, since it uses as much as digits as its factorization.

40122461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40122461 is about 6334.2293138155. The cubic root of 40122461 is about 342.3438427140.

Adding to 40122461 its reverse (16422104), we get a palindrome (56544565).

The spelling of 40122461 in words is "forty million, one hundred twenty-two thousand, four hundred sixty-one".