248774539 has 4 divisors (see below), whose sum is σ = 267911056. Its totient is φ = 229638024.

The previous prime is 248774483. The next prime is 248774567. The reversal of 248774539 is 935477842.

It is a happy number.

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 248774539 - 2⁹ = 248774027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248774492 and 248774501.

It is not an unprimeable number, because it can be changed into a prime (248778539) 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, 9568239 + ... + 9568264.

It is an arithmetic number, because the mean of its divisors is an integer number (66977764).

Almost surely, 2^248774539 is an apocalyptic number.

248774539 is a deficient number, since it is larger than the sum of its proper divisors (19136517).

248774539 is a wasteful number, since it uses less digits than its factorization.

248774539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19136516.

The product of its digits is 1693440, while the sum is 49.

The square root of 248774539 is about 15772.5882150014. The cubic root of 248774539 is about 628.9295157526.

The spelling of 248774539 in words is "two hundred forty-eight million, seven hundred seventy-four thousand, five hundred thirty-nine".