40161469 has 2 divisors, whose sum is σ = 40161470. Its totient is φ = 40161468.

The previous prime is 40161419. The next prime is 40161503. The reversal of 40161469 is 96416104.

40161469 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 can be written as a sum of positive squares in only one way, i.e., 34222500 + 5938969 = 5850^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 40161469 - 2⁹ = 40160957 is a prime.

It is a super-2 number, since 2×40161469² = 3225887184475922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40161469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40161419) 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, 20080734 + 20080735.

It is an arithmetic number, because the mean of its divisors is an integer number (20080735).

Almost surely, 2^40161469 is an apocalyptic number.

It is an amenable number.

40161469 is a deficient number, since it is larger than the sum of its proper divisors (1).

40161469 is an equidigital number, since it uses as much as digits as its factorization.

40161469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 40161469 is about 6337.3077091143. The cubic root of 40161469 is about 342.4547516902.

The spelling of 40161469 in words is "forty million, one hundred sixty-one thousand, four hundred sixty-nine".