385250121 has 16 divisors (see below), whose sum is σ = 571043200. Its totient is φ = 256697424.

The previous prime is 385250053. The next prime is 385250143. The reversal of 385250121 is 121052583.

It is a happy number.

It is not a de Polignac number, because 385250121 - 2¹⁰ = 385249097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385250191) 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 15 ways as a sum of consecutive naturals, for example, 98220 + ... + 102066.

It is an arithmetic number, because the mean of its divisors is an integer number (35690200).

Almost surely, 2^385250121 is an apocalyptic number.

It is an amenable number.

385250121 is a deficient number, since it is larger than the sum of its proper divisors (185793079).

385250121 is a wasteful number, since it uses less digits than its factorization.

385250121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565 (or 7559 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 385250121 is about 19627.7895087552. The cubic root of 385250121 is about 727.6361398956.

The spelling of 385250121 in words is "three hundred eighty-five million, two hundred fifty thousand, one hundred twenty-one".