252437147 has 4 divisors (see below), whose sum is σ = 252716376. Its totient is φ = 252157920.

The previous prime is 252437117. The next prime is 252437149. The reversal of 252437147 is 741734252.

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 252437147 - 2¹⁰ = 252436123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252437149) 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, 138254 + ... + 140067.

It is an arithmetic number, because the mean of its divisors is an integer number (63179094).

Almost surely, 2^252437147 is an apocalyptic number.

252437147 is a deficient number, since it is larger than the sum of its proper divisors (279229).

252437147 is an equidigital number, since it uses as much as digits as its factorization.

252437147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279228.

The product of its digits is 47040, while the sum is 35.

The square root of 252437147 is about 15888.2707366157. The cubic root of 252437147 is about 632.0009839153. Note that the first 3 decimals are identical.

The spelling of 252437147 in words is "two hundred fifty-two million, four hundred thirty-seven thousand, one hundred forty-seven".