1999053 has 24 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 1141560.

The previous prime is 1999043. The next prime is 1999061. The reversal of 1999053 is 3509991.

It is not a de Polignac number, because 1999053 - 2⁵ = 1999021 is a prime.

It is a Curzon number.

1999053 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1998999 and 1999017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 568 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^1999053 is an apocalyptic number.

It is an amenable number.

1999053 is a deficient number, since it is larger than the sum of its proper divisors (1448307).

1999053 is a wasteful number, since it uses less digits than its factorization.

1999053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 1999053 is about 1413.8787076691. The cubic root of 1999053 is about 125.9722160961.

The spelling of 1999053 in words is "one million, nine hundred ninety-nine thousand, fifty-three".