2019953 has 4 divisors (see below), whose sum is σ = 2175348. Its totient is φ = 1864560.

The previous prime is 2019931. The next prime is 2019959. The reversal of 2019953 is 3599102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1151329 + 868624 = 1073^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 2019953 - 2¹⁸ = 1757809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2019959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77678 + ... + 77703.

It is an arithmetic number, because the mean of its divisors is an integer number (543837).

2^2019953 is an apocalyptic number.

It is an amenable number.

2019953 is a deficient number, since it is larger than the sum of its proper divisors (155395).

2019953 is a wasteful number, since it uses less digits than its factorization.

2019953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155394.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 2019953 is about 1421.2505057167. The cubic root of 2019953 is about 126.4097060658.

The spelling of 2019953 in words is "two million, nineteen thousand, nine hundred fifty-three".