22639141 has 4 divisors (see below), whose sum is σ = 25873312. Its totient is φ = 19404972.

The previous prime is 22639139. The next prime is 22639157. The reversal of 22639141 is 14193622.

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 22639141 - 2¹ = 22639139 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 (22639171) 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, 1617075 + ... + 1617088.

It is an arithmetic number, because the mean of its divisors is an integer number (6468328).

Almost surely, 2^22639141 is an apocalyptic number.

It is an amenable number.

22639141 is a deficient number, since it is larger than the sum of its proper divisors (3234171).

22639141 is an equidigital number, since it uses as much as digits as its factorization.

22639141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234170.

The product of its digits is 2592, while the sum is 28.

The square root of 22639141 is about 4758.0606343341. The cubic root of 22639141 is about 282.8915540486.

The spelling of 22639141 in words is "twenty-two million, six hundred thirty-nine thousand, one hundred forty-one".