261332548 has 12 divisors (see below), whose sum is σ = 457580032. Its totient is φ = 130595400.

The previous prime is 261332531. The next prime is 261332557. The reversal of 261332548 is 845233162.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8940 + ... + 24547.

Almost surely, 2^261332548 is an apocalyptic number.

It is an amenable number.

261332548 is a deficient number, since it is larger than the sum of its proper divisors (196247484).

261332548 is a wasteful number, since it uses less digits than its factorization.

261332548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35442 (or 35440 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 261332548 is about 16165.7832473407. The cubic root of 261332548 is about 639.3389561273.

The spelling of 261332548 in words is "two hundred sixty-one million, three hundred thirty-two thousand, five hundred forty-eight".