46540391 has 2 divisors, whose sum is σ = 46540392. Its totient is φ = 46540390.

The previous prime is 46540381. The next prime is 46540427. The reversal of 46540391 is 19304564.

46540391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46540391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46540301) 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, 23270195 + 23270196.

It is an arithmetic number, because the mean of its divisors is an integer number (23270196).

Almost surely, 2^46540391 is an apocalyptic number.

46540391 is a deficient number, since it is larger than the sum of its proper divisors (1).

46540391 is an equidigital number, since it uses as much as digits as its factorization.

46540391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 46540391 is about 6822.0518174520. The cubic root of 46540391 is about 359.7024058104.

The spelling of 46540391 in words is "forty-six million, five hundred forty thousand, three hundred ninety-one".