1073381 has 2 divisors, whose sum is σ = 1073382. Its totient is φ = 1073380.

The previous prime is 1073353. The next prime is 1073383. The reversal of 1073381 is 1833701.

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., 1069156 + 4225 = 1034^2 + 65^2 .

It is an emirp because it is prime and its reverse (1833701) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073381 is a prime.

It is a super-2 number, since 2×1073381² = 2304293542322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1073383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1073383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536690 + 536691.

It is an arithmetic number, because the mean of its divisors is an integer number (536691).

2^1073381 is an apocalyptic number.

It is an amenable number.

1073381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073381 is an equidigital number, since it uses as much as digits as its factorization.

1073381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1073381 is about 1036.0410223538. The cubic root of 1073381 is about 102.3885284289.

The spelling of 1073381 in words is "one million, seventy-three thousand, three hundred eighty-one".