40121827 has 2 divisors, whose sum is σ = 40121828. Its totient is φ = 40121826.

The previous prime is 40121813. The next prime is 40121833. The reversal of 40121827 is 72812104.

It is a happy number.

40121827 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 40121827 - 2¹⁵ = 40089059 is a prime.

It is a super-2 number, since 2×40121827² = 3219522003635858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40121857) 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, 20060913 + 20060914.

It is an arithmetic number, because the mean of its divisors is an integer number (20060914).

Almost surely, 2^40121827 is an apocalyptic number.

40121827 is a deficient number, since it is larger than the sum of its proper divisors (1).

40121827 is an equidigital number, since it uses as much as digits as its factorization.

40121827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 40121827 is about 6334.1792680662. The cubic root of 40121827 is about 342.3420395084.

The spelling of 40121827 in words is "forty million, one hundred twenty-one thousand, eight hundred twenty-seven".