2012405251 has 8 divisors (see below), whose sum is σ = 2055896064. Its totient is φ = 1968942600.

The previous prime is 2012405183. The next prime is 2012405257. The reversal of 2012405251 is 1525042102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012405251 - 2⁷ = 2012405123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012405257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205926 + ... + 215476.

It is an arithmetic number, because the mean of its divisors is an integer number (256987008).

Almost surely, 2^2012405251 is an apocalyptic number.

2012405251 is a deficient number, since it is larger than the sum of its proper divisors (43490813).

2012405251 is an equidigital number, since it uses as much as digits as its factorization.

2012405251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14081.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2012405251 is about 44859.8400688188. The cubic root of 2012405251 is about 1262.5206220335.

Adding to 2012405251 its reverse (1525042102), we get a palindrome (3537447353).

The spelling of 2012405251 in words is "two billion, twelve million, four hundred five thousand, two hundred fifty-one".