1122547 has 4 divisors (see below), whose sum is σ = 1126216. Its totient is φ = 1118880.

The previous prime is 1122533. The next prime is 1122551. The reversal of 1122547 is 7452211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7452211 = 13 ⋅573247.

It is a cyclic number.

It is not a de Polignac number, because 1122547 - 2⁷ = 1122419 is a prime.

It is a super-2 number, since 2×1122547² = 2520223534418, which contains 22 as substring.

It is a Duffinian number.

1122547 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1122587) 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, 1329 + ... + 2002.

It is an arithmetic number, because the mean of its divisors is an integer number (281554).

2^1122547 is an apocalyptic number.

1122547 is a deficient number, since it is larger than the sum of its proper divisors (3669).

1122547 is an equidigital number, since it uses as much as digits as its factorization.

1122547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668.

The product of its digits is 560, while the sum is 22.

The square root of 1122547 is about 1059.5031854601. The cubic root of 1122547 is about 103.9285443578.

Adding to 1122547 its reverse (7452211), we get a palindrome (8574758).

The spelling of 1122547 in words is "one million, one hundred twenty-two thousand, five hundred forty-seven".