1121534 has 4 divisors (see below), whose sum is σ = 1682304. Its totient is φ = 560766.

The previous prime is 1121509. The next prime is 1121539. The reversal of 1121534 is 4351211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4351211 = 1523 ⋅2857.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280382 + ... + 280385.

It is an arithmetic number, because the mean of its divisors is an integer number (420576).

2^1121534 is an apocalyptic number.

1121534 is a deficient number, since it is larger than the sum of its proper divisors (560770).

1121534 is an equidigital number, since it uses as much as digits as its factorization.

1121534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560769.

The product of its digits is 120, while the sum is 17.

The square root of 1121534 is about 1059.0250233115. The cubic root of 1121534 is about 103.8972728238.

Adding to 1121534 its reverse (4351211), we get a palindrome (5472745).

The spelling of 1121534 in words is "one million, one hundred twenty-one thousand, five hundred thirty-four".