381207193 has 4 divisors (see below), whose sum is σ = 381283200. Its totient is φ = 381131188.

The previous prime is 381207181. The next prime is 381207209. The reversal of 381207193 is 391702183.

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 381207193 - 2⁵ = 381207161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381207143) 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, 29905 + ... + 40702.

It is an arithmetic number, because the mean of its divisors is an integer number (95320800).

Almost surely, 2^381207193 is an apocalyptic number.

It is an amenable number.

381207193 is a deficient number, since it is larger than the sum of its proper divisors (76007).

381207193 is an equidigital number, since it uses as much as digits as its factorization.

381207193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76006.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 381207193 is about 19524.5279840512. The cubic root of 381207193 is about 725.0818412565.

The spelling of 381207193 in words is "three hundred eighty-one million, two hundred seven thousand, one hundred ninety-three".