64054381 has 2 divisors, whose sum is σ = 64054382. Its totient is φ = 64054380.

The previous prime is 64054357. The next prime is 64054421. The reversal of 64054381 is 18345046.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45778756 + 18275625 = 6766^2 + 4275^2 .

It is a cyclic number.

It is not a de Polignac number, because 64054381 - 2⁷ = 64054253 is a prime.

It is a super-2 number, since 2×64054381² = 8205927450586322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64054481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32027190 + 32027191.

It is an arithmetic number, because the mean of its divisors is an integer number (32027191).

Almost surely, 2^64054381 is an apocalyptic number.

It is an amenable number.

64054381 is a deficient number, since it is larger than the sum of its proper divisors (1).

64054381 is an equidigital number, since it uses as much as digits as its factorization.

64054381 is an evil number, because the sum of its binary digits is even.

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

The square root of 64054381 is about 8003.3980908112. The cubic root of 64054381 is about 400.1132616765.

The spelling of 64054381 in words is "sixty-four million, fifty-four thousand, three hundred eighty-one".