612018252 has 18 divisors (see below), whose sum is σ = 1547046228. Its totient is φ = 204006072.

The previous prime is 612018229. The next prime is 612018259. The reversal of 612018252 is 252810216.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×612018252² = 749132681562271008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612018259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8500218 + ... + 8500289.

Almost surely, 2^612018252 is an apocalyptic number.

It is an amenable number.

612018252 is an abundant number, since it is smaller than the sum of its proper divisors (935027976).

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

612018252 is a wasteful number, since it uses less digits than its factorization.

612018252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17000517 (or 17000512 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 612018252 is about 24739.0026476412. The cubic root of 612018252 is about 849.0269150361.

Adding to 612018252 its reverse (252810216), we get a palindrome (864828468).

The spelling of 612018252 in words is "six hundred twelve million, eighteen thousand, two hundred fifty-two".