385920155 has 8 divisors (see below), whose sum is σ = 463471200. Its totient is φ = 308491456.

The previous prime is 385920137. The next prime is 385920193. The reversal of 385920155 is 551029583.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385920155 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23495 + ... + 36384.

It is an arithmetic number, because the mean of its divisors is an integer number (57933900).

Almost surely, 2^385920155 is an apocalyptic number.

385920155 is a deficient number, since it is larger than the sum of its proper divisors (77551045).

385920155 is a wasteful number, since it uses less digits than its factorization.

385920155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61173.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 385920155 is about 19644.8505975485. The cubic root of 385920155 is about 728.0577349001.

The spelling of 385920155 in words is "three hundred eighty-five million, nine hundred twenty thousand, one hundred fifty-five".