1825133 has 4 divisors (see below), whose sum is σ = 1827840. Its totient is φ = 1822428.

The previous prime is 1825129. The next prime is 1825139. The reversal of 1825133 is 3315281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3315281 = 653 ⋅5077.

It is a cyclic number.

It is not a de Polignac number, because 1825133 - 2² = 1825129 is a prime.

It is a super-2 number, since 2×1825133² = 6662220935378, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1825099 and 1825108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825139) 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, 566 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (456960).

2^1825133 is an apocalyptic number.

It is an amenable number.

1825133 is a deficient number, since it is larger than the sum of its proper divisors (2707).

1825133 is a wasteful number, since it uses less digits than its factorization.

1825133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706.

The product of its digits is 720, while the sum is 23.

The square root of 1825133 is about 1350.9748332223. The cubic root of 1825133 is about 122.2075879938.

The spelling of 1825133 in words is "one million, eight hundred twenty-five thousand, one hundred thirty-three".