948531505 has 4 divisors (see below), whose sum is σ = 1138237812. Its totient is φ = 758825200.

The previous prime is 948531499. The next prime is 948531527. The reversal of 948531505 is 505135849.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505135849 = 821 ⋅615269.

It can be written as a sum of positive squares in 2 ways, for example, as 507195441 + 441336064 = 22521^2 + 21008^2 .

It is not a de Polignac number, because 948531505 - 2¹⁷ = 948400433 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94853146 + ... + 94853155.

It is an arithmetic number, because the mean of its divisors is an integer number (284559453).

Almost surely, 2^948531505 is an apocalyptic number.

It is an amenable number.

948531505 is a deficient number, since it is larger than the sum of its proper divisors (189706307).

948531505 is a wasteful number, since it uses less digits than its factorization.

948531505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189706306.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 948531505 is about 30798.2386671706. The cubic root of 948531505 is about 982.5407848017.

The spelling of 948531505 in words is "nine hundred forty-eight million, five hundred thirty-one thousand, five hundred five".