381574273 has 2 divisors, whose sum is σ = 381574274. Its totient is φ = 381574272.

The previous prime is 381574223. The next prime is 381574289. The reversal of 381574273 is 372475183.

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., 192016449 + 189557824 = 13857^2 + 13768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381574273 is a prime.

It is not a weakly prime, because it can be changed into another prime (381574223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190787136 + 190787137.

It is an arithmetic number, because the mean of its divisors is an integer number (190787137).

Almost surely, 2^381574273 is an apocalyptic number.

It is an amenable number.

381574273 is a deficient number, since it is larger than the sum of its proper divisors (1).

381574273 is an equidigital number, since it uses as much as digits as its factorization.

381574273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 381574273 is about 19533.9262054509. The cubic root of 381574273 is about 725.3145035809.

The spelling of 381574273 in words is "three hundred eighty-one million, five hundred seventy-four thousand, two hundred seventy-three".