1222461 has 6 divisors (see below), whose sum is σ = 1765790. Its totient is φ = 814968.

The previous prime is 1222433. The next prime is 1222471. The reversal of 1222461 is 1642221.

It can be written as a sum of positive squares in only one way, i.e., 962361 + 260100 = 981^2 + 510^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1222461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67906 + ... + 67923.

2^1222461 is an apocalyptic number.

It is an amenable number.

1222461 is a deficient number, since it is larger than the sum of its proper divisors (543329).

1222461 is a wasteful number, since it uses less digits than its factorization.

1222461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135835 (or 135832 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1222461 is about 1105.6495828245. The cubic root of 1222461 is about 106.9247731639.

Adding to 1222461 its reverse (1642221), we get a palindrome (2864682).

The spelling of 1222461 in words is "one million, two hundred twenty-two thousand, four hundred sixty-one".