1453312120 has 48 divisors (see below), whose sum is σ = 3540852360. Its totient is φ = 536605056.

The previous prime is 1453312093. The next prime is 1453312123. The reversal of 1453312120 is 212133541.

It is a happy number.

It is a super-2 number, since 2×1453312120² = 4224232236277788800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1453312091 and 1453312100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453312123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100734 + ... + 114253.

Almost surely, 2^1453312120 is an apocalyptic number.

1453312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453312120 is an abundant number, since it is smaller than the sum of its proper divisors (2087540240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1453312120 is a wasteful number, since it uses less digits than its factorization.

1453312120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215024 (or 215007 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1453312120 is about 38122.3309885427. The cubic root of 1453312120 is about 1132.7123399209.

Adding to 1453312120 its reverse (212133541), we get a palindrome (1665445661).

The spelling of 1453312120 in words is "one billion, four hundred fifty-three million, three hundred twelve thousand, one hundred twenty".