1802231 has 2 divisors, whose sum is σ = 1802232. Its totient is φ = 1802230.

The previous prime is 1802219. The next prime is 1802239. The reversal of 1802231 is 1322081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1802231 - 2¹⁰ = 1801207 is a prime.

It is a super-2 number, since 2×1802231² = 6496073154722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1802239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901115 + 901116.

It is an arithmetic number, because the mean of its divisors is an integer number (901116).

2^1802231 is an apocalyptic number.

1802231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1802231 is an equidigital number, since it uses as much as digits as its factorization.

1802231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1802231 is about 1342.4719736367. The cubic root of 1802231 is about 121.6942761720.

The spelling of 1802231 in words is "one million, eight hundred two thousand, two hundred thirty-one".