220650137 has 2 divisors, whose sum is σ = 220650138. Its totient is φ = 220650136.

The previous prime is 220650121. The next prime is 220650139. The reversal of 220650137 is 731056022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209554576 + 11095561 = 14476^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 220650137 - 2⁴ = 220650121 is a prime.

Together with 220650139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220650139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110325068 + 110325069.

It is an arithmetic number, because the mean of its divisors is an integer number (110325069).

Almost surely, 2^220650137 is an apocalyptic number.

It is an amenable number.

220650137 is a deficient number, since it is larger than the sum of its proper divisors (1).

220650137 is an equidigital number, since it uses as much as digits as its factorization.

220650137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 220650137 is about 14854.2969204200. The cubic root of 220650137 is about 604.2751485667.

The spelling of 220650137 in words is "two hundred twenty million, six hundred fifty thousand, one hundred thirty-seven".