40999951 has 2 divisors, whose sum is σ = 40999952. Its totient is φ = 40999950.

The previous prime is 40999921. The next prime is 40999963. The reversal of 40999951 is 15999904.

40999951 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 40999951 - 2¹⁵ = 40967183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40999921) 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, 20499975 + 20499976.

It is an arithmetic number, because the mean of its divisors is an integer number (20499976).

Almost surely, 2^40999951 is an apocalyptic number.

40999951 is a deficient number, since it is larger than the sum of its proper divisors (1).

40999951 is an equidigital number, since it uses as much as digits as its factorization.

40999951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 40999951 is about 6403.1204111745. The cubic root of 40999951 is about 344.8215866702.

The spelling of 40999951 in words is "forty million, nine hundred ninety-nine thousand, nine hundred fifty-one".