40101251 has 2 divisors, whose sum is σ = 40101252. Its totient is φ = 40101250.

The previous prime is 40101169. The next prime is 40101263. The reversal of 40101251 is 15210104.

40101251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40101251 - 2¹⁰ = 40100227 is a prime.

It is a super-2 number, since 2×40101251² = 3216220663530002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40101151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050625 + 20050626.

It is an arithmetic number, because the mean of its divisors is an integer number (20050626).

Almost surely, 2^40101251 is an apocalyptic number.

40101251 is a deficient number, since it is larger than the sum of its proper divisors (1).

40101251 is an equidigital number, since it uses as much as digits as its factorization.

40101251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 40101251 is about 6332.5548556645. The cubic root of 40101251 is about 342.2835074921.

Adding to 40101251 its reverse (15210104), we get a palindrome (55311355).

The spelling of 40101251 in words is "forty million, one hundred one thousand, two hundred fifty-one".