1955017 has 4 divisors (see below), whose sum is σ = 2070036. Its totient is φ = 1840000.

The previous prime is 1954991. The next prime is 1955021. The reversal of 1955017 is 7105591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7105591 = 37 ⋅192043.

It can be written as a sum of positive squares in 2 ways, for example, as 1073296 + 881721 = 1036^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 1955017 - 2⁷ = 1954889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57484 + ... + 57517.

It is an arithmetic number, because the mean of its divisors is an integer number (517509).

2^1955017 is an apocalyptic number.

1955017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1955017 is a deficient number, since it is larger than the sum of its proper divisors (115019).

1955017 is a wasteful number, since it uses less digits than its factorization.

1955017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115018.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 1955017 is about 1398.2192245853. The cubic root of 1955017 is about 125.0403496405.

The spelling of 1955017 in words is "one million, nine hundred fifty-five thousand, seventeen".