22342129 has 4 divisors (see below), whose sum is σ = 22418676. Its totient is φ = 22265584.

The previous prime is 22342127. The next prime is 22342139. The reversal of 22342129 is 92124322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14807104 + 7535025 = 3848^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 22342129 - 2¹ = 22342127 is a prime.

It is a super-3 number, since 3×22342129³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22342123) 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, 37834 + ... + 38419.

It is an arithmetic number, because the mean of its divisors is an integer number (5604669).

Almost surely, 2^22342129 is an apocalyptic number.

It is an amenable number.

22342129 is a deficient number, since it is larger than the sum of its proper divisors (76547).

22342129 is an equidigital number, since it uses as much as digits as its factorization.

22342129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76546.

The product of its digits is 1728, while the sum is 25.

The square root of 22342129 is about 4726.7461323832. The cubic root of 22342129 is about 281.6489814571.

The spelling of 22342129 in words is "twenty-two million, three hundred forty-two thousand, one hundred twenty-nine".