22075013 has 4 divisors (see below), whose sum is σ = 22248960. Its totient is φ = 21901068.

The previous prime is 22074991. The next prime is 22075019. The reversal of 22075013 is 31057022.

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 an emirpimes, since its reverse is a distinct semiprime: 31057022 = 2 ⋅15528511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22075013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22075019) 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, 86783 + ... + 87036.

It is an arithmetic number, because the mean of its divisors is an integer number (5562240).

Almost surely, 2^22075013 is an apocalyptic number.

It is an amenable number.

22075013 is a deficient number, since it is larger than the sum of its proper divisors (173947).

22075013 is a wasteful number, since it uses less digits than its factorization.

22075013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173946.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 22075013 is about 4698.4053677817. The cubic root of 22075013 is about 280.5220405426.

Subtracting 22075013 from its reverse (31057022), we obtain a square (8982009 = 2997²).

The spelling of 22075013 in words is "twenty-two million, seventy-five thousand, thirteen".