40615361 has 2 divisors, whose sum is σ = 40615362. Its totient is φ = 40615360.

The previous prime is 40615357. The next prime is 40615387. The reversal of 40615361 is 16351604.

It is an a-pointer prime, because the next prime (40615387) can be obtained adding 40615361 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36675136 + 3940225 = 6056^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 40615361 - 2² = 40615357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40615361.

It is not a weakly prime, because it can be changed into another prime (40615391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20307680 + 20307681.

It is an arithmetic number, because the mean of its divisors is an integer number (20307681).

Almost surely, 2^40615361 is an apocalyptic number.

It is an amenable number.

40615361 is a deficient number, since it is larger than the sum of its proper divisors (1).

40615361 is an equidigital number, since it uses as much as digits as its factorization.

40615361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40615361 is about 6373.0182017628. The cubic root of 40615361 is about 343.7400263332.

Adding to 40615361 its reverse (16351604), we get a palindrome (56966965).

The spelling of 40615361 in words is "forty million, six hundred fifteen thousand, three hundred sixty-one".