1453440113 has 4 divisors (see below), whose sum is σ = 1459095780. Its totient is φ = 1447784448.

The previous prime is 1453440103. The next prime is 1453440137. The reversal of 1453440113 is 3110443541.

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: 3110443541 = 367 ⋅8475323.

It can be written as a sum of positive squares in 2 ways, for example, as 1176284209 + 277155904 = 34297^2 + 16648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453440113 - 2⁶ = 1453440049 is a prime.

It is a super-2 number, since 2×1453440113² = 4224976324154905538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1453440103) 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, 2827448 + ... + 2827961.

It is an arithmetic number, because the mean of its divisors is an integer number (364773945).

Almost surely, 2^1453440113 is an apocalyptic number.

It is an amenable number.

1453440113 is a deficient number, since it is larger than the sum of its proper divisors (5655667).

1453440113 is an equidigital number, since it uses as much as digits as its factorization.

1453440113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655666.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1453440113 is about 38124.0096658261. The cubic root of 1453440113 is about 1132.7455915518.

Adding to 1453440113 its reverse (3110443541), we get a palindrome (4563883654).

The spelling of 1453440113 in words is "one billion, four hundred fifty-three million, four hundred forty thousand, one hundred thirteen".