64406119 has 2 divisors, whose sum is σ = 64406120. Its totient is φ = 64406118.

The previous prime is 64406117. The next prime is 64406137. The reversal of 64406119 is 91160446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64406119 - 2¹ = 64406117 is a prime.

It is a super-2 number, since 2×64406119² = 8296296329284322, which contains 22 as substring.

Together with 64406117, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64406113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32203059 + 32203060.

It is an arithmetic number, because the mean of its divisors is an integer number (32203060).

Almost surely, 2^64406119 is an apocalyptic number.

64406119 is a deficient number, since it is larger than the sum of its proper divisors (1).

64406119 is an equidigital number, since it uses as much as digits as its factorization.

64406119 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 64406119 is about 8025.3422979958. The cubic root of 64406119 is about 400.8442978988.

The spelling of 64406119 in words is "sixty-four million, four hundred six thousand, one hundred nineteen".