22174157 has 2 divisors, whose sum is σ = 22174158. Its totient is φ = 22174156.

The previous prime is 22174151. The next prime is 22174189. The reversal of 22174157 is 75147122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21031396 + 1142761 = 4586^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 22174157 - 2¹² = 22170061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22174151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11087078 + 11087079.

It is an arithmetic number, because the mean of its divisors is an integer number (11087079).

Almost surely, 2^22174157 is an apocalyptic number.

It is an amenable number.

22174157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22174157 is an equidigital number, since it uses as much as digits as its factorization.

22174157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 29.

The square root of 22174157 is about 4708.9443615316. The cubic root of 22174157 is about 280.9413765574.

The spelling of 22174157 in words is "twenty-two million, one hundred seventy-four thousand, one hundred fifty-seven".