220373129 has 2 divisors, whose sum is σ = 220373130. Its totient is φ = 220373128.

The previous prime is 220373123. The next prime is 220373149. The reversal of 220373129 is 921373022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218241529 + 2131600 = 14773^2 + 1460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220373129 is a prime.

It is not a weakly prime, because it can be changed into another prime (220373123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110186564 + 110186565.

It is an arithmetic number, because the mean of its divisors is an integer number (110186565).

Almost surely, 2^220373129 is an apocalyptic number.

It is an amenable number.

220373129 is a deficient number, since it is larger than the sum of its proper divisors (1).

220373129 is an equidigital number, since it uses as much as digits as its factorization.

220373129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 220373129 is about 14844.9698214580. The cubic root of 220373129 is about 604.0221701802.

The spelling of 220373129 in words is "two hundred twenty million, three hundred seventy-three thousand, one hundred twenty-nine".