1955959 has 2 divisors, whose sum is σ = 1955960. Its totient is φ = 1955958.

The previous prime is 1955957. The next prime is 1955977. The reversal of 1955959 is 9595591.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1955959 - 2¹ = 1955957 is a prime.

Together with 1955957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977979 + 977980.

It is an arithmetic number, because the mean of its divisors is an integer number (977980).

2^1955959 is an apocalyptic number.

1955959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955959 is an equidigital number, since it uses as much as digits as its factorization.

1955959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91125, while the sum is 43.

The square root of 1955959 is about 1398.5560410652. The cubic root of 1955959 is about 125.0604294482.

The spelling of 1955959 in words is "one million, nine hundred fifty-five thousand, nine hundred fifty-nine".