46540381 has 2 divisors, whose sum is σ = 46540382. Its totient is φ = 46540380.

The previous prime is 46540379. The next prime is 46540391. The reversal of 46540381 is 18304564.

It is a happy number.

46540381 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 can be written as a sum of positive squares in only one way, i.e., 32024281 + 14516100 = 5659^2 + 3810^2 .

It is a cyclic number.

It is not a de Polignac number, because 46540381 - 2¹ = 46540379 is a prime.

It is a super-2 number, since 2×46540381² = 4332014127250322, which contains 22 as substring.

Together with 46540379, it forms a pair of twin primes.

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, 23270190 + 23270191.

It is an arithmetic number, because the mean of its divisors is an integer number (23270191).

Almost surely, 2^46540381 is an apocalyptic number.

It is an amenable number.

46540381 is a deficient number, since it is larger than the sum of its proper divisors (1).

46540381 is an equidigital number, since it uses as much as digits as its factorization.

46540381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 46540381 is about 6822.0510845346. The cubic root of 46540381 is about 359.7023800476.

The spelling of 46540381 in words is "forty-six million, five hundred forty thousand, three hundred eighty-one".