451115120 has 20 divisors (see below), whose sum is σ = 1048842840. Its totient is φ = 180446016.

The previous prime is 451115117. The next prime is 451115143. The reversal of 451115120 is 21511154.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×451115120² = 407009702985228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 451115092 and 451115101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2819390 + ... + 2819549.

It is an arithmetic number, because the mean of its divisors is an integer number (52442142).

Almost surely, 2^451115120 is an apocalyptic number.

451115120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451115120 is an abundant number, since it is smaller than the sum of its proper divisors (597727720).

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

451115120 is a wasteful number, since it uses less digits than its factorization.

451115120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638952 (or 5638946 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 451115120 is about 21239.4708032003. The cubic root of 451115120 is about 766.9418932028.

Adding to 451115120 its reverse (21511154), we get a palindrome (472626274).

The spelling of 451115120 in words is "four hundred fifty-one million, one hundred fifteen thousand, one hundred twenty".