40251163 has 2 divisors, whose sum is σ = 40251164. Its totient is φ = 40251162.

The previous prime is 40251151. The next prime is 40251181. The reversal of 40251163 is 36115204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40251163 - 2⁵ = 40251131 is a prime.

It is a super-2 number, since 2×40251163² = 3240312245705138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40251103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20125581 + 20125582.

It is an arithmetic number, because the mean of its divisors is an integer number (20125582).

Almost surely, 2^40251163 is an apocalyptic number.

40251163 is a deficient number, since it is larger than the sum of its proper divisors (1).

40251163 is an equidigital number, since it uses as much as digits as its factorization.

40251163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40251163 is about 6344.3804268029. The cubic root of 40251163 is about 342.7095008243.

Adding to 40251163 its reverse (36115204), we get a palindrome (76366367).

The spelling of 40251163 in words is "forty million, two hundred fifty-one thousand, one hundred sixty-three".