1955539 has 2 divisors, whose sum is σ = 1955540. Its totient is φ = 1955538.

The previous prime is 1955533. The next prime is 1955543. The reversal of 1955539 is 9355591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1955539 - 2³ = 1955531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1955498 and 1955507.

It is not a weakly prime, because it can be changed into another prime (1955531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977769 + 977770.

It is an arithmetic number, because the mean of its divisors is an integer number (977770).

2^1955539 is an apocalyptic number.

1955539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955539 is an equidigital number, since it uses as much as digits as its factorization.

1955539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30375, while the sum is 37.

The square root of 1955539 is about 1398.4058781341. The cubic root of 1955539 is about 125.0514774643.

The spelling of 1955539 in words is "one million, nine hundred fifty-five thousand, five hundred thirty-nine".