261053124 has 12 divisors (see below), whose sum is σ = 609123984. Its totient is φ = 87017704.

The previous prime is 261053123. The next prime is 261053153. The reversal of 261053124 is 421350162.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 261053094 and 261053103.

It is not an unprimeable number, because it can be changed into a prime (261053123) 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, 10877202 + ... + 10877225.

It is an arithmetic number, because the mean of its divisors is an integer number (50760332).

Almost surely, 2^261053124 is an apocalyptic number.

It is an amenable number.

261053124 is an abundant number, since it is smaller than the sum of its proper divisors (348070860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261053124 is a wasteful number, since it uses less digits than its factorization.

261053124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21754434 (or 21754432 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 261053124 is about 16157.1384842738. The cubic root of 261053124 is about 639.1110085575. Note that the first 3 decimals are identical.

The spelling of 261053124 in words is "two hundred sixty-one million, fifty-three thousand, one hundred twenty-four".