2551231146 has 8 divisors (see below), whose sum is σ = 5102462304. Its totient is φ = 850410380.

The previous prime is 2551231129. The next prime is 2551231147. The reversal of 2551231146 is 6411321552.

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

2551231146 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2551231147) 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, 212602590 + ... + 212602601.

It is an arithmetic number, because the mean of its divisors is an integer number (637807788).

Almost surely, 2^2551231146 is an apocalyptic number.

2551231146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2551231146 is a wasteful number, since it uses less digits than its factorization.

2551231146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425205196.

The product of its digits is 7200, while the sum is 30.

The square root of 2551231146 is about 50509.7133826752. The cubic root of 2551231146 is about 1366.4170404147.

Adding to 2551231146 its reverse (6411321552), we get a palindrome (8962552698).

The spelling of 2551231146 in words is "two billion, five hundred fifty-one million, two hundred thirty-one thousand, one hundred forty-six".