40513061 has 2 divisors, whose sum is σ = 40513062. Its totient is φ = 40513060.

The previous prime is 40513027. The next prime is 40513133. The reversal of 40513061 is 16031504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35628961 + 4884100 = 5969^2 + 2210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40513061 is a prime.

It is a super-2 number, since 2×40513061² = 3282616223179442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40513661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20256530 + 20256531.

It is an arithmetic number, because the mean of its divisors is an integer number (20256531).

Almost surely, 2^40513061 is an apocalyptic number.

It is an amenable number.

40513061 is a deficient number, since it is larger than the sum of its proper divisors (1).

40513061 is an equidigital number, since it uses as much as digits as its factorization.

40513061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 40513061 is about 6364.9871170333. The cubic root of 40513061 is about 343.4511851260.

Adding to 40513061 its reverse (16031504), we get a palindrome (56544565).

The spelling of 40513061 in words is "forty million, five hundred thirteen thousand, sixty-one".