251146452 has 12 divisors (see below), whose sum is σ = 586008416. Its totient is φ = 83715480.

The previous prime is 251146447. The next prime is 251146459. The reversal of 251146452 is 254641152.

251146452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251146459) 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, 10464424 + ... + 10464447.

Almost surely, 2^251146452 is an apocalyptic number.

It is an amenable number.

251146452 is an abundant number, since it is smaller than the sum of its proper divisors (334861964).

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

251146452 is a wasteful number, since it uses less digits than its factorization.

251146452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20928878 (or 20928876 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 251146452 is about 15847.6008278856. The cubic root of 251146452 is about 630.9220160423.

The spelling of 251146452 in words is "two hundred fifty-one million, one hundred forty-six thousand, four hundred fifty-two".