506423147 has 4 divisors (see below), whose sum is σ = 506920176. Its totient is φ = 505926120.

The previous prime is 506423117. The next prime is 506423171. The reversal of 506423147 is 741324605.

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 506423147 - 2¹⁸ = 506161003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506423117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246983 + ... + 249024.

It is an arithmetic number, because the mean of its divisors is an integer number (126730044).

Almost surely, 2^506423147 is an apocalyptic number.

506423147 is a deficient number, since it is larger than the sum of its proper divisors (497029).

506423147 is a wasteful number, since it uses less digits than its factorization.

506423147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497028.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 506423147 is about 22503.8473821700. The cubic root of 506423147 is about 797.0847788230.

The spelling of 506423147 in words is "five hundred six million, four hundred twenty-three thousand, one hundred forty-seven".