381225567 has 4 divisors (see below), whose sum is σ = 508300760. Its totient is φ = 254150376.

The previous prime is 381225563. The next prime is 381225571. The reversal of 381225567 is 765522183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 765522183 = 3 ⋅255174061.

It is an interprime number because it is at equal distance from previous prime (381225563) and next prime (381225571).

It is not a de Polignac number, because 381225567 - 2² = 381225563 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 (381225563) 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, 63537592 + ... + 63537597.

It is an arithmetic number, because the mean of its divisors is an integer number (127075190).

Almost surely, 2^381225567 is an apocalyptic number.

381225567 is a deficient number, since it is larger than the sum of its proper divisors (127075193).

381225567 is a wasteful number, since it uses less digits than its factorization.

381225567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127075192.

The product of its digits is 100800, while the sum is 39.

The square root of 381225567 is about 19524.9985147247. The cubic root of 381225567 is about 725.0934905992.

The spelling of 381225567 in words is "three hundred eighty-one million, two hundred twenty-five thousand, five hundred sixty-seven".