40545959 has 2 divisors, whose sum is σ = 40545960. Its totient is φ = 40545958.

The previous prime is 40545937. The next prime is 40545979. The reversal of 40545959 is 95954504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40545959 - 2¹² = 40541863 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_2464889 and since 40545959 and 2464889 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40545919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272979 + 20272980.

It is an arithmetic number, because the mean of its divisors is an integer number (20272980).

Almost surely, 2^40545959 is an apocalyptic number.

40545959 is a deficient number, since it is larger than the sum of its proper divisors (1).

40545959 is an equidigital number, since it uses as much as digits as its factorization.

40545959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 40545959 is about 6367.5708869238. The cubic root of 40545959 is about 343.5441247018.

It can be divided in two parts, 405 and 45959, that added together give a palindrome (46364).

The spelling of 40545959 in words is "forty million, five hundred forty-five thousand, nine hundred fifty-nine".