123075406 has 8 divisors (see below), whose sum is σ = 185034960. Its totient is φ = 61397088.

The previous prime is 123075397. The next prime is 123075413. The reversal of 123075406 is 604570321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69211 + ... + 70966.

It is an arithmetic number, because the mean of its divisors is an integer number (23129370).

Almost surely, 2^123075406 is an apocalyptic number.

123075406 is a deficient number, since it is larger than the sum of its proper divisors (61959554).

123075406 is a wasteful number, since it uses less digits than its factorization.

123075406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140618.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 123075406 is about 11093.9355505609. The cubic root of 123075406 is about 497.4205908458.

It can be divided in two parts, 1230 and 75406, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 123075406 in words is "one hundred twenty-three million, seventy-five thousand, four hundred six".