22154003 has 2 divisors, whose sum is σ = 22154004. Its totient is φ = 22154002.

The previous prime is 22153997. The next prime is 22154021. The reversal of 22154003 is 30045122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22154003 - 2²² = 17959699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22154203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077001 + 11077002.

It is an arithmetic number, because the mean of its divisors is an integer number (11077002).

Almost surely, 2^22154003 is an apocalyptic number.

22154003 is a deficient number, since it is larger than the sum of its proper divisors (1).

22154003 is an equidigital number, since it uses as much as digits as its factorization.

22154003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22154003 is about 4706.8039049869. The cubic root of 22154003 is about 280.8562352706.

Adding to 22154003 its reverse (30045122), we get a palindrome (52199125).

The spelling of 22154003 in words is "twenty-two million, one hundred fifty-four thousand, three".