248160521 has 4 divisors (see below), whose sum is σ = 283612032. Its totient is φ = 212709012.

The previous prime is 248160503. The next prime is 248160541. The reversal of 248160521 is 125061842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 125061842 = 2 ⋅62530921.

It is a cyclic number.

It is not a de Polignac number, because 248160521 - 2⁶ = 248160457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (248160541) 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, 17725745 + ... + 17725758.

It is an arithmetic number, because the mean of its divisors is an integer number (70903008).

Almost surely, 2^248160521 is an apocalyptic number.

It is an amenable number.

248160521 is a deficient number, since it is larger than the sum of its proper divisors (35451511).

248160521 is an equidigital number, since it uses as much as digits as its factorization.

248160521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35451510.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 248160521 is about 15753.1114704366. Note that the first 3 decimals coincide. The cubic root of 248160521 is about 628.4116543512.

The spelling of 248160521 in words is "two hundred forty-eight million, one hundred sixty thousand, five hundred twenty-one".