1011959 has 16 divisors (see below), whose sum is σ = 1219680. Its totient is φ = 829440.

The previous prime is 1011947. The next prime is 1011961. The reversal of 1011959 is 9591101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1011959 - 2⁴ = 1011943 is a prime.

It is a super-2 number, since 2×1011959² = 2048122035362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4079 + ... + 4319.

It is an arithmetic number, because the mean of its divisors is an integer number (76230).

2^1011959 is an apocalyptic number.

1011959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1011959 is a deficient number, since it is larger than the sum of its proper divisors (207721).

1011959 is a wasteful number, since it uses less digits than its factorization.

1011959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 1011959 is about 1005.9617288943. The cubic root of 1011959 is about 100.3970547223.

The spelling of 1011959 in words is "one million, eleven thousand, nine hundred fifty-nine".