1452721120 has 48 divisors (see below), whose sum is σ = 3505094208. Its totient is φ = 568721920.

The previous prime is 1452721103. The next prime is 1452721129. The reversal of 1452721120 is 211272541.

It is a super-2 number, since 2×1452721120² = 4220797304988108800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452721129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89071 + ... + 104110.

It is an arithmetic number, because the mean of its divisors is an integer number (73022796).

Almost surely, 2^1452721120 is an apocalyptic number.

1452721120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452721120 is an abundant number, since it is smaller than the sum of its proper divisors (2052373088).

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

1452721120 is a wasteful number, since it uses less digits than its factorization.

1452721120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193243 (or 193235 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1452721120 is about 38114.5788380247. The cubic root of 1452721120 is about 1132.5587771848.

Adding to 1452721120 its reverse (211272541), we get a palindrome (1663993661).

The spelling of 1452721120 in words is "one billion, four hundred fifty-two million, seven hundred twenty-one thousand, one hundred twenty".