123040395 has 48 divisors (see below), whose sum is σ = 221774592. Its totient is φ = 63037440.

The previous prime is 123040343. The next prime is 123040403. The reversal of 123040395 is 593040321.

123040395 is a `hidden beast` number, since 1 + 230 + 40 + 395 = 666.

It is not a de Polignac number, because 123040395 - 2¹¹ = 123038347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269007 + ... + 269463.

It is an arithmetic number, because the mean of its divisors is an integer number (4620304).

Almost surely, 2^123040395 is an apocalyptic number.

123040395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123040395 is a deficient number, since it is larger than the sum of its proper divisors (98734197).

123040395 is a wasteful number, since it uses less digits than its factorization.

123040395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 123040395 is about 11092.3575041557. The cubic root of 123040395 is about 497.3734196454.

The spelling of 123040395 in words is "one hundred twenty-three million, forty thousand, three hundred ninety-five".