605681138 has 16 divisors (see below), whose sum is σ = 941362560. Its totient is φ = 292087536.

The previous prime is 605681119. The next prime is 605681159. The reversal of 605681138 is 831186506.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42170 + ... + 54677.

It is an arithmetic number, because the mean of its divisors is an integer number (58835160).

Almost surely, 2^605681138 is an apocalyptic number.

605681138 is a deficient number, since it is larger than the sum of its proper divisors (335681422).

605681138 is a wasteful number, since it uses less digits than its factorization.

605681138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96961.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 605681138 is about 24610.5899563582. The cubic root of 605681138 is about 846.0863392183.

The spelling of 605681138 in words is "six hundred five million, six hundred eighty-one thousand, one hundred thirty-eight".