1122543973 has 2 divisors, whose sum is σ = 1122543974. Its totient is φ = 1122543972.

The previous prime is 1122543937. The next prime is 1122544013. The reversal of 1122543973 is 3793452211.

Together with previous prime (1122543937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782768484 + 339775489 = 27978^2 + 18433^2 .

It is an emirp because it is prime and its reverse (3793452211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122543973 - 2¹³ = 1122535781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122543923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561271986 + 561271987.

It is an arithmetic number, because the mean of its divisors is an integer number (561271987).

Almost surely, 2^1122543973 is an apocalyptic number.

It is an amenable number.

1122543973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122543973 is an equidigital number, since it uses as much as digits as its factorization.

1122543973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 1122543973 is about 33504.3873694178. The cubic root of 1122543973 is about 1039.2845094165.

The spelling of 1122543973 in words is "one billion, one hundred twenty-two million, five hundred forty-three thousand, nine hundred seventy-three".