248961541 has 4 divisors (see below), whose sum is σ = 262064800. Its totient is φ = 235858284.

The previous prime is 248961539. The next prime is 248961551. The reversal of 248961541 is 145169842.

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 248961541 - 2¹ = 248961539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248961494 and 248961503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248961521) 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, 6551601 + ... + 6551638.

It is an arithmetic number, because the mean of its divisors is an integer number (65516200).

Almost surely, 2^248961541 is an apocalyptic number.

It is an amenable number.

248961541 is a deficient number, since it is larger than the sum of its proper divisors (13103259).

248961541 is a wasteful number, since it uses less digits than its factorization.

248961541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103258.

The product of its digits is 69120, while the sum is 40.

The square root of 248961541 is about 15778.5151709532. The cubic root of 248961541 is about 629.0870635212.

The spelling of 248961541 in words is "two hundred forty-eight million, nine hundred sixty-one thousand, five hundred forty-one".