234561261 has 16 divisors (see below), whose sum is σ = 342285120. Its totient is φ = 141697920.

The previous prime is 234561233. The next prime is 234561293. The reversal of 234561261 is 162165432.

It is not a de Polignac number, because 234561261 - 2²² = 230366957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234561211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026 + ... + 21683.

It is an arithmetic number, because the mean of its divisors is an integer number (21392820).

Almost surely, 2^234561261 is an apocalyptic number.

It is an amenable number.

234561261 is a deficient number, since it is larger than the sum of its proper divisors (107723859).

234561261 is a wasteful number, since it uses less digits than its factorization.

234561261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23036.

The product of its digits is 8640, while the sum is 30.

The square root of 234561261 is about 15315.3929430492. The cubic root of 234561261 is about 616.7163030251.

The spelling of 234561261 in words is "two hundred thirty-four million, five hundred sixty-one thousand, two hundred sixty-one".