1955099 has 2 divisors, whose sum is σ = 1955100. Its totient is φ = 1955098.

The previous prime is 1955071. The next prime is 1955113. The reversal of 1955099 is 9905591.

It is a strong prime.

It is an emirp because it is prime and its reverse (9905591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1955099 - 2¹² = 1951003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1955399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977549 + 977550.

It is an arithmetic number, because the mean of its divisors is an integer number (977550).

2^1955099 is an apocalyptic number.

1955099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955099 is an equidigital number, since it uses as much as digits as its factorization.

1955099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18225, while the sum is 38.

The square root of 1955099 is about 1398.2485472905. The cubic root of 1955099 is about 125.0420978206.

The spelling of 1955099 in words is "one million, nine hundred fifty-five thousand, ninety-nine".