220045157 has 2 divisors, whose sum is σ = 220045158. Its totient is φ = 220045156.

The previous prime is 220045123. The next prime is 220045169. The reversal of 220045157 is 751540022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174266401 + 45778756 = 13201^2 + 6766^2 .

It is a cyclic number.

It is not a de Polignac number, because 220045157 - 2²⁰ = 218996581 is a prime.

It is a super-2 number, since 2×220045157² = 96839742238309298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220045187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110022578 + 110022579.

It is an arithmetic number, because the mean of its divisors is an integer number (110022579).

Almost surely, 2^220045157 is an apocalyptic number.

It is an amenable number.

220045157 is a deficient number, since it is larger than the sum of its proper divisors (1).

220045157 is an equidigital number, since it uses as much as digits as its factorization.

220045157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 220045157 is about 14833.9191382453. The cubic root of 220045157 is about 603.7223745302.

Adding to 220045157 its reverse (751540022), we get a palindrome (971585179).

The spelling of 220045157 in words is "two hundred twenty million, forty-five thousand, one hundred fifty-seven".