123155067 has 32 divisors (see below), whose sum is σ = 191093760. Its totient is φ = 69102720.

The previous prime is 123155059. The next prime is 123155069. The reversal of 123155067 is 760551321.

It is not a de Polignac number, because 123155067 - 2³ = 123155059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123155069) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 395842 + ... + 396152.

It is an arithmetic number, because the mean of its divisors is an integer number (5971680).

Almost surely, 2^123155067 is an apocalyptic number.

123155067 is a deficient number, since it is larger than the sum of its proper divisors (67938693).

123155067 is a wasteful number, since it uses less digits than its factorization.

123155067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 123155067 is about 11097.5252646705. The cubic root of 123155067 is about 497.5278867898.

The spelling of 123155067 in words is "one hundred twenty-three million, one hundred fifty-five thousand, sixty-seven".