1121542235 has 8 divisors (see below), whose sum is σ = 1468200816. Its totient is φ = 815667040.

The previous prime is 1121542229. The next prime is 1121542243. The reversal of 1121542235 is 5322451211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121542235 - 2¹⁸ = 1121280091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10195784 + ... + 10195893.

It is an arithmetic number, because the mean of its divisors is an integer number (183525102).

Almost surely, 2^1121542235 is an apocalyptic number.

1121542235 is a deficient number, since it is larger than the sum of its proper divisors (346658581).

1121542235 is a wasteful number, since it uses less digits than its factorization.

1121542235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20391693.

The product of its digits is 2400, while the sum is 26.

The square root of 1121542235 is about 33489.4346772232. The cubic root of 1121542235 is about 1038.9752711601.

Adding to 1121542235 its reverse (5322451211), we get a palindrome (6443993446).

The spelling of 1121542235 in words is "one billion, one hundred twenty-one million, five hundred forty-two thousand, two hundred thirty-five".