222462649 has 2 divisors, whose sum is σ = 222462650. Its totient is φ = 222462648.

The previous prime is 222462641. The next prime is 222462671. The reversal of 222462649 is 946264222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146894400 + 75568249 = 12120^2 + 8693^2 .

It is a cyclic number.

It is not a de Polignac number, because 222462649 - 2³ = 222462641 is a prime.

It is not a weakly prime, because it can be changed into another prime (222462641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111231324 + 111231325.

It is an arithmetic number, because the mean of its divisors is an integer number (111231325).

Almost surely, 2^222462649 is an apocalyptic number.

It is an amenable number.

222462649 is a deficient number, since it is larger than the sum of its proper divisors (1).

222462649 is an equidigital number, since it uses as much as digits as its factorization.

222462649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 222462649 is about 14915.1818292638. The cubic root of 222462649 is about 605.9252277701.

The spelling of 222462649 in words is "two hundred twenty-two million, four hundred sixty-two thousand, six hundred forty-nine".