220001953 has 2 divisors, whose sum is σ = 220001954. Its totient is φ = 220001952.

The previous prime is 220001939. The next prime is 220002031. The reversal of 220001953 is 359100022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218064289 + 1937664 = 14767^2 + 1392^2 .

It is a cyclic number.

It is not a de Polignac number, because 220001953 - 2⁵ = 220001921 is a prime.

It is not a weakly prime, because it can be changed into another prime (220001933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000976 + 110000977.

It is an arithmetic number, because the mean of its divisors is an integer number (110000977).

Almost surely, 2^220001953 is an apocalyptic number.

It is an amenable number.

220001953 is a deficient number, since it is larger than the sum of its proper divisors (1).

220001953 is an equidigital number, since it uses as much as digits as its factorization.

220001953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 220001953 is about 14832.4628096618. The cubic root of 220001953 is about 603.6828600217.

Adding to 220001953 its reverse (359100022), we get a palindrome (579101975).

The spelling of 220001953 in words is "two hundred twenty million, one thousand, nine hundred fifty-three".