40980061 has 2 divisors, whose sum is σ = 40980062. Its totient is φ = 40980060.

The previous prime is 40980059. The next prime is 40980073. The reversal of 40980061 is 16008904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24940036 + 16040025 = 4994^2 + 4005^2 .

It is a cyclic number.

It is not a de Polignac number, because 40980061 - 2¹ = 40980059 is a prime.

Together with 40980059, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40980001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20490030 + 20490031.

It is an arithmetic number, because the mean of its divisors is an integer number (20490031).

Almost surely, 2^40980061 is an apocalyptic number.

It is an amenable number.

40980061 is a deficient number, since it is larger than the sum of its proper divisors (1).

40980061 is an equidigital number, since it uses as much as digits as its factorization.

40980061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 40980061 is about 6401.5670737719. The cubic root of 40980061 is about 344.7658174106.

Adding to 40980061 its reverse (16008904), we get a palindrome (56988965).

The spelling of 40980061 in words is "forty million, nine hundred eighty thousand, sixty-one".