451015120 has 20 divisors (see below), whose sum is σ = 1048610340. Its totient is φ = 180406016.

The previous prime is 451015109. The next prime is 451015121. The reversal of 451015120 is 21510154.

It can be written as a sum of positive squares in 2 ways, for example, as 51494976 + 399520144 = 7176^2 + 19988^2 .

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

It is a super-2 number, since 2×451015120² = 406829276937228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451015121) 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, 2818765 + ... + 2818924.

It is an arithmetic number, because the mean of its divisors is an integer number (52430517).

Almost surely, 2^451015120 is an apocalyptic number.

451015120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451015120 is an abundant number, since it is smaller than the sum of its proper divisors (597595220).

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

451015120 is a wasteful number, since it uses less digits than its factorization.

451015120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637702 (or 5637696 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 451015120 is about 21237.1165651084. The cubic root of 451015120 is about 766.8852189352.

Adding to 451015120 its reverse (21510154), we get a palindrome (472525274).

The spelling of 451015120 in words is "four hundred fifty-one million, fifteen thousand, one hundred twenty".