611138 has 8 divisors (see below), whose sum is σ = 1000080. Its totient is φ = 277780.

The previous prime is 611137. The next prime is 611147. The reversal of 611138 is 831116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (611131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13868 + ... + 13911.

It is an arithmetic number, because the mean of its divisors is an integer number (125010).

2⁶¹¹¹³⁸ is an apocalyptic number.

611138 is a deficient number, since it is larger than the sum of its proper divisors (388942).

611138 is a wasteful number, since it uses less digits than its factorization.

611138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27792.

The product of its digits is 144, while the sum is 20.

The square root of 611138 is about 781.7531579725. The cubic root of 611138 is about 84.8619674333.

The spelling of 611138 in words is "six hundred eleven thousand, one hundred thirty-eight".