381583207 has 4 divisors (see below), whose sum is σ = 404029296. Its totient is φ = 359137120.

The previous prime is 381583201. The next prime is 381583211. The reversal of 381583207 is 702385183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702385183 = 1061 ⋅662003.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381583207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381583201) 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, 11223019 + ... + 11223052.

It is an arithmetic number, because the mean of its divisors is an integer number (101007324).

Almost surely, 2^381583207 is an apocalyptic number.

381583207 is a deficient number, since it is larger than the sum of its proper divisors (22446089).

381583207 is a wasteful number, since it uses less digits than its factorization.

381583207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22446088.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 381583207 is about 19534.1548831783. The cubic root of 381583207 is about 725.3201642606.

The spelling of 381583207 in words is "three hundred eighty-one million, five hundred eighty-three thousand, two hundred seven".