2023519 has 4 divisors (see below), whose sum is σ = 2130040. Its totient is φ = 1917000.

The previous prime is 2023507. The next prime is 2023529. The reversal of 2023519 is 9153202.

2023519 = 212² + 213² + ... + 249².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9153202 = 2 ⋅4576601.

It is a cyclic number.

It is not a de Polignac number, because 2023519 - 2¹¹ = 2021471 is a prime.

It is a super-2 number, since 2×2023519² = 8189258286722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2023519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53232 + ... + 53269.

It is an arithmetic number, because the mean of its divisors is an integer number (532510).

2^2023519 is an apocalyptic number.

2023519 is a deficient number, since it is larger than the sum of its proper divisors (106521).

2023519 is a wasteful number, since it uses less digits than its factorization.

2023519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106520.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2023519 is about 1422.5044815395. The cubic root of 2023519 is about 126.4840497108.

It can be divided in two parts, 202 and 3519, that added together give a square (3721 = 61²).

The spelling of 2023519 in words is "two million, twenty-three thousand, five hundred nineteen".