381214253 has 4 divisors (see below), whose sum is σ = 435673440. Its totient is φ = 326755068.

The previous prime is 381214247. The next prime is 381214261. The reversal of 381214253 is 352412183.

It is a happy number.

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 381214253 - 2⁶ = 381214189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381214243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27229583 + ... + 27229596.

It is an arithmetic number, because the mean of its divisors is an integer number (108918360).

Almost surely, 2^381214253 is an apocalyptic number.

It is an amenable number.

381214253 is a deficient number, since it is larger than the sum of its proper divisors (54459187).

381214253 is an equidigital number, since it uses as much as digits as its factorization.

381214253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54459186.

The product of its digits is 5760, while the sum is 29.

The square root of 381214253 is about 19524.7087814390. The cubic root of 381214253 is about 725.0863174279.

The spelling of 381214253 in words is "three hundred eighty-one million, two hundred fourteen thousand, two hundred fifty-three".