381053957 has 4 divisors (see below), whose sum is σ = 389161536. Its totient is φ = 372946380.

The previous prime is 381053923. The next prime is 381053983. The reversal of 381053957 is 759350183.

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 381053957 - 2¹⁰ = 381052933 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 (381055957) 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, 4053719 + ... + 4053812.

It is an arithmetic number, because the mean of its divisors is an integer number (97290384).

Almost surely, 2^381053957 is an apocalyptic number.

It is an amenable number.

381053957 is a deficient number, since it is larger than the sum of its proper divisors (8107579).

381053957 is an equidigital number, since it uses as much as digits as its factorization.

381053957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107578.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 381053957 is about 19520.6033974363. The cubic root of 381053957 is about 724.9846731599.

The spelling of 381053957 in words is "three hundred eighty-one million, fifty-three thousand, nine hundred fifty-seven".