1222537 has 2 divisors, whose sum is σ = 1222538. Its totient is φ = 1222536.

The previous prime is 1222523. The next prime is 1222561. The reversal of 1222537 is 7352221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 3721 = 1104^2 + 61^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222537 - 2⁷ = 1222409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611268 + 611269.

It is an arithmetic number, because the mean of its divisors is an integer number (611269).

2^1222537 is an apocalyptic number.

It is an amenable number.

1222537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222537 is an equidigital number, since it uses as much as digits as its factorization.

1222537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 22.

The square root of 1222537 is about 1105.6839512266. The cubic root of 1222537 is about 106.9269889441.

Adding to 1222537 its reverse (7352221), we get a palindrome (8574758).

The spelling of 1222537 in words is "one million, two hundred twenty-two thousand, five hundred thirty-seven".