22315429 has 2 divisors, whose sum is σ = 22315430. Its totient is φ = 22315428.

The previous prime is 22315427. The next prime is 22315453. The reversal of 22315429 is 92451322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13176900 + 9138529 = 3630^2 + 3023^2 .

It is a cyclic number.

It is not a de Polignac number, because 22315429 - 2¹ = 22315427 is a prime.

It is a super-3 number, since 3×22315429³ (a number of 23 digits) contains 333 as substring.

Together with 22315427, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22315397 and 22315406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22315421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11157714 + 11157715.

It is an arithmetic number, because the mean of its divisors is an integer number (11157715).

Almost surely, 2^22315429 is an apocalyptic number.

It is an amenable number.

22315429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22315429 is an equidigital number, since it uses as much as digits as its factorization.

22315429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 22315429 is about 4723.9209349861. The cubic root of 22315429 is about 281.5367416999.

The spelling of 22315429 in words is "twenty-two million, three hundred fifteen thousand, four hundred twenty-nine".