22701509 has 4 divisors (see below), whose sum is σ = 22922016. Its totient is φ = 22481004.

The previous prime is 22701493. The next prime is 22701521. The reversal of 22701509 is 90510722.

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 not a de Polignac number, because 22701509 - 2⁴ = 22701493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22704509) 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, 110099 + ... + 110304.

It is an arithmetic number, because the mean of its divisors is an integer number (5730504).

Almost surely, 2^22701509 is an apocalyptic number.

It is an amenable number.

22701509 is a deficient number, since it is larger than the sum of its proper divisors (220507).

22701509 is a wasteful number, since it uses less digits than its factorization.

22701509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220506.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 22701509 is about 4764.6100574968. The cubic root of 22701509 is about 283.1510928038.

The spelling of 22701509 in words is "twenty-two million, seven hundred one thousand, five hundred nine".