123051506 has 16 divisors (see below), whose sum is σ = 187549440. Its totient is φ = 60540480.

The previous prime is 123051497. The next prime is 123051527. The reversal of 123051506 is 605150321.

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, 52091 + ... + 54401.

It is an arithmetic number, because the mean of its divisors is an integer number (11721840).

Almost surely, 2^123051506 is an apocalyptic number.

123051506 is a deficient number, since it is larger than the sum of its proper divisors (64497934).

123051506 is a wasteful number, since it uses less digits than its factorization.

123051506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 123051506 is about 11092.8583331800. The cubic root of 123051506 is about 497.3883907442.

The spelling of 123051506 in words is "one hundred twenty-three million, fifty-one thousand, five hundred six".