1955183 has 2 divisors, whose sum is σ = 1955184. Its totient is φ = 1955182.

The previous prime is 1955179. The next prime is 1955197. The reversal of 1955183 is 3815591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1955183 - 2² = 1955179 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is equal to p₁₄₅₈₆₈ and since 1955183 and 145868 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 (1955113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977591 + 977592.

It is an arithmetic number, because the mean of its divisors is an integer number (977592).

2^1955183 is an apocalyptic number.

1955183 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955183 is an equidigital number, since it uses as much as digits as its factorization.

1955183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 32.

The square root of 1955183 is about 1398.2785845460. The cubic root of 1955183 is about 125.0438885885.

The spelling of 1955183 in words is "one million, nine hundred fifty-five thousand, one hundred eighty-three".