261359248 has 10 divisors (see below), whose sum is σ = 506383574. Its totient is φ = 130679616.

The previous prime is 261359227. The next prime is 261359251. The reversal of 261359248 is 842953162.

It can be written as a sum of positive squares in only one way, i.e., 211062784 + 50296464 = 14528^2 + 7092^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 261359248.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8167461 + ... + 8167492.

Almost surely, 2^261359248 is an apocalyptic number.

It is an amenable number.

261359248 is a deficient number, since it is larger than the sum of its proper divisors (245024326).

261359248 is a wasteful number, since it uses less digits than its factorization.

261359248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16334961 (or 16334955 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 261359248 is about 16166.6090445708. The cubic root of 261359248 is about 639.3607288570.

The spelling of 261359248 in words is "two hundred sixty-one million, three hundred fifty-nine thousand, two hundred forty-eight".