1122397 has 2 divisors, whose sum is σ = 1122398. Its totient is φ = 1122396.

The previous prime is 1122389. The next prime is 1122419. The reversal of 1122397 is 7932211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755161 + 367236 = 869^2 + 606^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122397 - 2³ = 1122389 is a prime.

It is an Ulam number.

1122397 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561198 + 561199.

It is an arithmetic number, because the mean of its divisors is an integer number (561199).

2^1122397 is an apocalyptic number.

It is an amenable number.

1122397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122397 is an equidigital number, since it uses as much as digits as its factorization.

1122397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 25.

The square root of 1122397 is about 1059.4323952004. The cubic root of 1122397 is about 103.9239150116.

The spelling of 1122397 in words is "one million, one hundred twenty-two thousand, three hundred ninety-seven".