15220097 has 2 divisors, whose sum is σ = 15220098. Its totient is φ = 15220096.

The previous prime is 15220091. The next prime is 15220111. The reversal of 15220097 is 79002251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 2660161 = 3544^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 15220097 - 2⁴ = 15220081 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15220091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7610048 + 7610049.

It is an arithmetic number, because the mean of its divisors is an integer number (7610049).

Almost surely, 2^15220097 is an apocalyptic number.

It is an amenable number.

15220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

15220097 is an equidigital number, since it uses as much as digits as its factorization.

15220097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 15220097 is about 3901.2942724178. The cubic root of 15220097 is about 247.8215905969.

The spelling of 15220097 in words is "fifteen million, two hundred twenty thousand, ninety-seven".