252745194 has 32 divisors (see below), whose sum is σ = 547868160. Its totient is φ = 77268672.

The previous prime is 252745189. The next prime is 252745217. The reversal of 252745194 is 491547252.

252745194 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1927 + ... + 22565.

It is an arithmetic number, because the mean of its divisors is an integer number (17120880).

Almost surely, 2^252745194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252745194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273934080).

252745194 is an abundant number, since it is smaller than the sum of its proper divisors (295122966).

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

252745194 is a wasteful number, since it uses less digits than its factorization.

252745194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814.

The product of its digits is 100800, while the sum is 39.

The square root of 252745194 is about 15897.9619448532. The cubic root of 252745194 is about 632.2579546396.

The spelling of 252745194 in words is "two hundred fifty-two million, seven hundred forty-five thousand, one hundred ninety-four".