612543120 has 200 divisors, whose sum is σ = 2217316416. Its totient is φ = 139878144.

The previous prime is 612543097. The next prime is 612543137. The reversal of 612543120 is 21345216.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 575709 + ... + 576771.

Almost surely, 2^612543120 is an apocalyptic number.

612543120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612543120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108658208).

612543120 is an abundant number, since it is smaller than the sum of its proper divisors (1604773296).

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

612543120 is a wasteful number, since it uses less digits than its factorization.

612543120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 612543120 is about 24749.6084817518. The cubic root of 612543120 is about 849.2695547111.

Adding to 612543120 its reverse (21345216), we get a palindrome (633888336).

The spelling of 612543120 in words is "six hundred twelve million, five hundred forty-three thousand, one hundred twenty".