2125769 has 4 divisors (see below), whose sum is σ = 2145744. Its totient is φ = 2105796.

The previous prime is 2125757. The next prime is 2125771. The reversal of 2125769 is 9675212.

2125769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2125769 is a prime.

It is a super-2 number, since 2×2125769² = 9037787682722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9827 + ... + 10040.

It is an arithmetic number, because the mean of its divisors is an integer number (536436).

2^2125769 is an apocalyptic number.

It is an amenable number.

2125769 is a deficient number, since it is larger than the sum of its proper divisors (19975).

2125769 is a wasteful number, since it uses less digits than its factorization.

2125769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19974.

The product of its digits is 7560, while the sum is 32.

The square root of 2125769 is about 1458.0017146766. The cubic root of 2125769 is about 128.5795860198.

The spelling of 2125769 in words is "two million, one hundred twenty-five thousand, seven hundred sixty-nine".