252406147 has 4 divisors (see below), whose sum is σ = 288464176. Its totient is φ = 216348120.

The previous prime is 252406109. The next prime is 252406153. The reversal of 252406147 is 741604252.

252406147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252406147 - 2¹¹ = 252404099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252406747) 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, 18029004 + ... + 18029017.

It is an arithmetic number, because the mean of its divisors is an integer number (72116044).

Almost surely, 2^252406147 is an apocalyptic number.

252406147 is a deficient number, since it is larger than the sum of its proper divisors (36058029).

252406147 is an equidigital number, since it uses as much as digits as its factorization.

252406147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36058028.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 252406147 is about 15887.2951442340. The cubic root of 252406147 is about 631.9751123498.

The spelling of 252406147 in words is "two hundred fifty-two million, four hundred six thousand, one hundred forty-seven".