350732561 has 2 divisors, whose sum is σ = 350732562. Its totient is φ = 350732560.

The previous prime is 350732513. The next prime is 350732581. The reversal of 350732561 is 165237053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251032336 + 99700225 = 15844^2 + 9985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-350732561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (350732581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175366280 + 175366281.

It is an arithmetic number, because the mean of its divisors is an integer number (175366281).

Almost surely, 2^350732561 is an apocalyptic number.

It is an amenable number.

350732561 is a deficient number, since it is larger than the sum of its proper divisors (1).

350732561 is an equidigital number, since it uses as much as digits as its factorization.

350732561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 350732561 is about 18727.8552162280. The cubic root of 350732561 is about 705.2212044996.

The spelling of 350732561 in words is "three hundred fifty million, seven hundred thirty-two thousand, five hundred sixty-one".