1122971 has 4 divisors (see below), whose sum is σ = 1146912. Its totient is φ = 1099032.

The previous prime is 1122941. The next prime is 1122983. The reversal of 1122971 is 1792211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1792211 = 131 ⋅13681.

It is a cyclic number.

It is not a de Polignac number, because 1122971 - 2¹⁰ = 1121947 is a prime.

It is a super-2 number, since 2×1122971² = 2522127733682, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1122941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11900 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (286728).

2^1122971 is an apocalyptic number.

1122971 is a deficient number, since it is larger than the sum of its proper divisors (23941).

1122971 is an equidigital number, since it uses as much as digits as its factorization.

1122971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23940.

The product of its digits is 252, while the sum is 23.

The square root of 1122971 is about 1059.7032603517. The cubic root of 1122971 is about 103.9416277464.

The spelling of 1122971 in words is "one million, one hundred twenty-two thousand, nine hundred seventy-one".