40134779 has 2 divisors, whose sum is σ = 40134780. Its totient is φ = 40134778.

The previous prime is 40134749. The next prime is 40134791. The reversal of 40134779 is 97743104.

40134779 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 a de Polignac number, because none of the positive numbers 2^k-40134779 is a prime.

It is a super-2 number, since 2×40134779² = 3221600970757682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40134709) 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, 20067389 + 20067390.

It is an arithmetic number, because the mean of its divisors is an integer number (20067390).

Almost surely, 2^40134779 is an apocalyptic number.

40134779 is a deficient number, since it is larger than the sum of its proper divisors (1).

40134779 is an equidigital number, since it uses as much as digits as its factorization.

40134779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 40134779 is about 6335.2015753250. The cubic root of 40134779 is about 342.3788734663.

The spelling of 40134779 in words is "forty million, one hundred thirty-four thousand, seven hundred seventy-nine".