220131049 has 2 divisors, whose sum is σ = 220131050. Its totient is φ = 220131048.

The previous prime is 220131047. The next prime is 220131071. The reversal of 220131049 is 940131022.

It is an a-pointer prime, because the next prime (220131071) can be obtained adding 220131049 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220077225 + 53824 = 14835^2 + 232^2 .

It is a cyclic number.

It is not a de Polignac number, because 220131049 - 2¹ = 220131047 is a prime.

Together with 220131047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220131047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110065524 + 110065525.

It is an arithmetic number, because the mean of its divisors is an integer number (110065525).

Almost surely, 2^220131049 is an apocalyptic number.

It is an amenable number.

220131049 is a deficient number, since it is larger than the sum of its proper divisors (1).

220131049 is an equidigital number, since it uses as much as digits as its factorization.

220131049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 220131049 is about 14836.8139774009. The cubic root of 220131049 is about 603.8009162523.

The spelling of 220131049 in words is "two hundred twenty million, one hundred thirty-one thousand, forty-nine".