22025149 has 8 divisors (see below), whose sum is σ = 23458680. Its totient is φ = 20606976.

The previous prime is 22025147. The next prime is 22025153. The reversal of 22025149 is 94152022.

22025149 = 632² + 633² + ... + 682².

It can be written as a sum of positive squares in 4 ways, for example, as 10936249 + 11088900 = 3307^2 + 3330^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22025149 - 2¹ = 22025147 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 (22025141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804 + ... + 6685.

It is an arithmetic number, because the mean of its divisors is an integer number (2932335).

Almost surely, 2^22025149 is an apocalyptic number.

It is an amenable number.

22025149 is a deficient number, since it is larger than the sum of its proper divisors (1433531).

22025149 is a wasteful number, since it uses less digits than its factorization.

22025149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 22025149 is about 4693.0958865124. The cubic root of 22025149 is about 280.3106628420.

The spelling of 22025149 in words is "twenty-two million, twenty-five thousand, one hundred forty-nine".