22061149 has 4 divisors (see below), whose sum is σ = 24066720. Its totient is φ = 20055580.

The previous prime is 22061131. The next prime is 22061159. The reversal of 22061149 is 94116022.

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 22061149 - 2⁹ = 22060637 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 (22061129) 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, 1002769 + ... + 1002790.

It is an arithmetic number, because the mean of its divisors is an integer number (6016680).

Almost surely, 2^22061149 is an apocalyptic number.

It is an amenable number.

22061149 is a deficient number, since it is larger than the sum of its proper divisors (2005571).

22061149 is a wasteful number, since it uses less digits than its factorization.

22061149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005570.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 22061149 is about 4696.9297418633. The cubic root of 22061149 is about 280.4633018526.

The spelling of 22061149 in words is "twenty-two million, sixty-one thousand, one hundred forty-nine".