22303147 has 2 divisors, whose sum is σ = 22303148. Its totient is φ = 22303146.

The previous prime is 22303103. The next prime is 22303157. The reversal of 22303147 is 74130322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22303147 - 2⁷ = 22303019 is a prime.

It is a super-2 number, since 2×22303147² = 994860732207218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22303157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11151573 + 11151574.

It is an arithmetic number, because the mean of its divisors is an integer number (11151574).

Almost surely, 2^22303147 is an apocalyptic number.

22303147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22303147 is an equidigital number, since it uses as much as digits as its factorization.

22303147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 22303147 is about 4722.6207766451. The cubic root of 22303147 is about 281.4850813467.

Adding to 22303147 its reverse (74130322), we get a palindrome (96433469).

The spelling of 22303147 in words is "twenty-two million, three hundred three thousand, one hundred forty-seven".