381413831237 has 2 divisors, whose sum is σ = 381413831238. Its totient is φ = 381413831236.

The previous prime is 381413831167. The next prime is 381413831251. The reversal of 381413831237 is 732138314183.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225662051521 + 155751779716 = 475039^2 + 394654^2 .

It is a cyclic number.

It is not a de Polignac number, because 381413831237 - 2¹⁸ = 381413569093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381413831297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190706915618 + 190706915619.

It is an arithmetic number, because the mean of its divisors is an integer number (190706915619).

Almost surely, 2^381413831237 is an apocalyptic number.

It is an amenable number.

381413831237 is a deficient number, since it is larger than the sum of its proper divisors (1).

381413831237 is an equidigital number, since it uses as much as digits as its factorization.

381413831237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The spelling of 381413831237 in words is "three hundred eighty-one billion, four hundred thirteen million, eight hundred thirty-one thousand, two hundred thirty-seven".