1020945 has 16 divisors (see below), whose sum is σ = 1690560. Its totient is φ = 525504.

The previous prime is 1020931. The next prime is 1020959. The reversal of 1020945 is 5490201.

It is an interprime number because it is at equal distance from previous prime (1020931) and next prime (1020959).

It is not a de Polignac number, because 1020945 - 2⁵ = 1020913 is a prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739 + ... + 1608.

It is an arithmetic number, because the mean of its divisors is an integer number (105660).

2^1020945 is an apocalyptic number.

1020945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020945 is a deficient number, since it is larger than the sum of its proper divisors (669615).

1020945 is a wasteful number, since it uses less digits than its factorization.

1020945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1020945 is about 1010.4182302393. The cubic root of 1020945 is about 100.6933482384.

The spelling of 1020945 in words is "one million, twenty thousand, nine hundred forty-five".