22149519 has 24 divisors (see below), whose sum is σ = 34760880. Its totient is φ = 12507264.

The previous prime is 22149503. The next prime is 22149559. The reversal of 22149519 is 91594122.

It is not a de Polignac number, because 22149519 - 2⁴ = 22149503 is a prime.

It is a super-2 number, since 2×22149519² = 981202383862722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22149519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22149559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12237 + ... + 13929.

It is an arithmetic number, because the mean of its divisors is an integer number (1448370).

Almost surely, 2^22149519 is an apocalyptic number.

22149519 is a deficient number, since it is larger than the sum of its proper divisors (12611361).

22149519 is a wasteful number, since it uses less digits than its factorization.

22149519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1792 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 22149519 is about 4706.3275491619. The cubic root of 22149519 is about 280.8372854321.

The spelling of 22149519 in words is "twenty-two million, one hundred forty-nine thousand, five hundred nineteen".