1020117 has 16 divisors (see below), whose sum is σ = 1605632. Its totient is φ = 563760.

The previous prime is 1020113. The next prime is 1020137. The reversal of 1020117 is 7110201.

It is not a de Polignac number, because 1020117 - 2² = 1020113 is a prime.

1020117 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (100352).

2^1020117 is an apocalyptic number.

It is an amenable number.

1020117 is a deficient number, since it is larger than the sum of its proper divisors (585515).

1020117 is a wasteful number, since it uses less digits than its factorization.

1020117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 14, while the sum is 12.

The square root of 1020117 is about 1010.0084158065. The cubic root of 1020117 is about 100.6661196604. Note that the first 3 decimals are identical.

Adding to 1020117 its reverse (7110201), we get a palindrome (8130318).

The spelling of 1020117 in words is "one million, twenty thousand, one hundred seventeen".