387045121 has 4 divisors (see below), whose sum is σ = 387467200. Its totient is φ = 386623044.

The previous prime is 387045119. The next prime is 387045149. The reversal of 387045121 is 121540783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 387045121 - 2¹ = 387045119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387045161) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 209661 + ... + 211498.

It is an arithmetic number, because the mean of its divisors is an integer number (96866800).

Almost surely, 2^387045121 is an apocalyptic number.

It is an amenable number.

387045121 is a deficient number, since it is larger than the sum of its proper divisors (422079).

387045121 is an equidigital number, since it uses as much as digits as its factorization.

387045121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422078.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 387045121 is about 19673.4623541460. The cubic root of 387045121 is about 728.7644835485.

The spelling of 387045121 in words is "three hundred eighty-seven million, forty-five thousand, one hundred twenty-one".