248155541 has 2 divisors, whose sum is σ = 248155542. Its totient is φ = 248155540.

The previous prime is 248155529. The next prime is 248155573. The reversal of 248155541 is 145551842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245079025 + 3076516 = 15655^2 + 1754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248155541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248155591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124077770 + 124077771.

It is an arithmetic number, because the mean of its divisors is an integer number (124077771).

Almost surely, 2^248155541 is an apocalyptic number.

It is an amenable number.

248155541 is a deficient number, since it is larger than the sum of its proper divisors (1).

248155541 is an equidigital number, since it uses as much as digits as its factorization.

248155541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32000, while the sum is 35.

The square root of 248155541 is about 15752.9534056316. The cubic root of 248155541 is about 628.4074507401.

The spelling of 248155541 in words is "two hundred forty-eight million, one hundred fifty-five thousand, five hundred forty-one".