380123155 has 16 divisors (see below), whose sum is σ = 480790080. Its totient is φ = 288066688.

The previous prime is 380123153. The next prime is 380123167. The reversal of 380123155 is 551321083.

It is a cyclic number.

It is not a de Polignac number, because 380123155 - 2¹ = 380123153 is a prime.

It is a super-2 number, since 2×380123155² = 288987225934308050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (380123153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17047 + ... + 32416.

It is an arithmetic number, because the mean of its divisors is an integer number (30049380).

Almost surely, 2^380123155 is an apocalyptic number.

380123155 is a deficient number, since it is larger than the sum of its proper divisors (100666925).

380123155 is a wasteful number, since it uses less digits than its factorization.

380123155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49550.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 380123155 is about 19496.7472928178. The cubic root of 380123155 is about 724.3938842198.

The spelling of 380123155 in words is "three hundred eighty million, one hundred twenty-three thousand, one hundred fifty-five".