1020159 has 12 divisors (see below), whose sum is σ = 1684176. Its totient is φ = 582912.

The previous prime is 1020157. The next prime is 1020163. The reversal of 1020159 is 9510201.

It is not a de Polignac number, because 1020159 - 2¹ = 1020157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8034 + ... + 8159.

It is an arithmetic number, because the mean of its divisors is an integer number (140348).

2^1020159 is an apocalyptic number.

1020159 is a deficient number, since it is larger than the sum of its proper divisors (664017).

1020159 is a wasteful number, since it uses less digits than its factorization.

1020159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16206 (or 16203 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1020159 is about 1010.0292074985. The cubic root of 1020159 is about 100.6675011748.

The spelling of 1020159 in words is "one million, twenty thousand, one hundred fifty-nine".