248749541 has 4 divisors (see below), whose sum is σ = 248822112. Its totient is φ = 248676972.

The previous prime is 248749537. The next prime is 248749603. The reversal of 248749541 is 145947842.

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 248749541 - 2² = 248749537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248749492 and 248749501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248749741) 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, 30875 + ... + 38088.

It is an arithmetic number, because the mean of its divisors is an integer number (62205528).

Almost surely, 2^248749541 is an apocalyptic number.

It is an amenable number.

248749541 is a deficient number, since it is larger than the sum of its proper divisors (72571).

248749541 is an equidigital number, since it uses as much as digits as its factorization.

248749541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72570.

The product of its digits is 322560, while the sum is 44.

The square root of 248749541 is about 15771.7957443025. The cubic root of 248749541 is about 628.9084491452.

The spelling of 248749541 in words is "two hundred forty-eight million, seven hundred forty-nine thousand, five hundred forty-one".