1120453261 has 16 divisors (see below), whose sum is σ = 1154857600. Its totient is φ = 1086706368.

The previous prime is 1120453223. The next prime is 1120453283. The reversal of 1120453261 is 1623540211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1120453261 - 2⁷ = 1120453133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120453661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579975 + ... + 1580683.

It is an arithmetic number, because the mean of its divisors is an integer number (72178600).

Almost surely, 2^1120453261 is an apocalyptic number.

It is an amenable number.

1120453261 is a deficient number, since it is larger than the sum of its proper divisors (34404339).

1120453261 is a wasteful number, since it uses less digits than its factorization.

1120453261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1120453261 is about 33473.1722577947. The cubic root of 1120453261 is about 1038.6388940397.

Adding to 1120453261 its reverse (1623540211), we get a palindrome (2743993472).

The spelling of 1120453261 in words is "one billion, one hundred twenty million, four hundred fifty-three thousand, two hundred sixty-one".