1831373 has 2 divisors, whose sum is σ = 1831374. Its totient is φ = 1831372.

The previous prime is 1831369. The next prime is 1831381. The reversal of 1831373 is 3731381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1737124 + 94249 = 1318^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 1831373 - 2² = 1831369 is a prime.

It is equal to p₁₃₇₂₆₇ and since 1831373 and 137267 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1831343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915686 + 915687.

It is an arithmetic number, because the mean of its divisors is an integer number (915687).

2^1831373 is an apocalyptic number.

It is an amenable number.

1831373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1831373 is an equidigital number, since it uses as much as digits as its factorization.

1831373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 1831373 is about 1353.2823060988. The cubic root of 1831373 is about 122.3467025921.

The spelling of 1831373 in words is "one million, eight hundred thirty-one thousand, three hundred seventy-three".