64741138 has 16 divisors (see below), whose sum is σ = 121074624. Its totient is φ = 25223760.

The previous prime is 64741123. The next prime is 64741141. The reversal of 64741138 is 83114746.

It is a happy number.

It is a super-3 number, since 3×64741138³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210045 + ... + 210352.

It is an arithmetic number, because the mean of its divisors is an integer number (7567164).

Almost surely, 2^64741138 is an apocalyptic number.

64741138 is a deficient number, since it is larger than the sum of its proper divisors (56333486).

64741138 is a wasteful number, since it uses less digits than its factorization.

64741138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420417.

The product of its digits is 16128, while the sum is 34.

The square root of 64741138 is about 8046.1877929862. The cubic root of 64741138 is about 401.5381154214.

The spelling of 64741138 in words is "sixty-four million, seven hundred forty-one thousand, one hundred thirty-eight".