261012548 has 12 divisors (see below), whose sum is σ = 457445520. Its totient is φ = 130313832.

The previous prime is 261012527. The next prime is 261012569. The reversal of 261012548 is 845210162.

It is an interprime number because it is at equal distance from previous prime (261012527) and next prime (261012569).

It is a super-3 number, since 3×261012548³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 261012548.

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, 45038 + ... + 50501.

It is an arithmetic number, because the mean of its divisors is an integer number (38120460).

Almost surely, 2^261012548 is an apocalyptic number.

It is an amenable number.

261012548 is a deficient number, since it is larger than the sum of its proper divisors (196432972).

261012548 is a wasteful number, since it uses less digits than its factorization.

261012548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96226 (or 96224 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 261012548 is about 16155.8827675865. The cubic root of 261012548 is about 639.0778940818.

The spelling of 261012548 in words is "two hundred sixty-one million, twelve thousand, five hundred forty-eight".