1831849 has 2 divisors, whose sum is σ = 1831850. Its totient is φ = 1831848.

The previous prime is 1831831. The next prime is 1831853. The reversal of 1831849 is 9481381.

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., 1671849 + 160000 = 1293^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1831849 - 2¹¹ = 1829801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1841849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915924 + 915925.

It is an arithmetic number, because the mean of its divisors is an integer number (915925).

2^1831849 is an apocalyptic number.

It is an amenable number.

1831849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1831849 is an equidigital number, since it uses as much as digits as its factorization.

1831849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 1831849 is about 1353.4581633726. The cubic root of 1831849 is about 122.3573015590.

It can be divided in two parts, 183184 and 9, that multiplied together give a square (1648656 = 1284²).

The spelling of 1831849 in words is "one million, eight hundred thirty-one thousand, eight hundred forty-nine".