248949169 has 4 divisors (see below), whose sum is σ = 284513344. Its totient is φ = 213384996.

The previous prime is 248949161. The next prime is 248949187. The reversal of 248949169 is 961949842.

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.

It is a cyclic number.

It is not a de Polignac number, because 248949169 - 2³ = 248949161 is a prime.

It is a super-2 number, since 2×248949169² = 123951377491581122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248949161) 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, 17782077 + ... + 17782090.

It is an arithmetic number, because the mean of its divisors is an integer number (71128336).

Almost surely, 2^248949169 is an apocalyptic number.

It is an amenable number.

248949169 is a deficient number, since it is larger than the sum of its proper divisors (35564175).

248949169 is an equidigital number, since it uses as much as digits as its factorization.

248949169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35564174.

The product of its digits is 1119744, while the sum is 52.

The square root of 248949169 is about 15778.1231139829. The cubic root of 248949169 is about 629.0766426425.

The spelling of 248949169 in words is "two hundred forty-eight million, nine hundred forty-nine thousand, one hundred sixty-nine".