387112243 has 4 divisors (see below), whose sum is σ = 442414000. Its totient is φ = 331810488.

The previous prime is 387112217. The next prime is 387112247. The reversal of 387112243 is 342211783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342211783 = 12289 ⋅27847.

It is a cyclic number.

It is not a de Polignac number, because 387112243 - 2⁹ = 387111731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387112247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27650868 + ... + 27650881.

It is an arithmetic number, because the mean of its divisors is an integer number (110603500).

Almost surely, 2^387112243 is an apocalyptic number.

387112243 is a deficient number, since it is larger than the sum of its proper divisors (55301757).

387112243 is an equidigital number, since it uses as much as digits as its factorization.

387112243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55301756.

The product of its digits is 8064, while the sum is 31.

The square root of 387112243 is about 19675.1681822545. The cubic root of 387112243 is about 728.8066089577.

The spelling of 387112243 in words is "three hundred eighty-seven million, one hundred twelve thousand, two hundred forty-three".