261334652 has 12 divisors (see below), whose sum is σ = 458953656. Its totient is φ = 130205040.

The previous prime is 261334627. The next prime is 261334673. The reversal of 261334652 is 256433162.

It is a super-2 number, since 2×261334652² = 136591600671922208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114299 + ... + 116562.

It is an arithmetic number, because the mean of its divisors is an integer number (38246138).

Almost surely, 2^261334652 is an apocalyptic number.

It is an amenable number.

261334652 is a deficient number, since it is larger than the sum of its proper divisors (197619004).

261334652 is a wasteful number, since it uses less digits than its factorization.

261334652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231148 (or 231146 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 261334652 is about 16165.8483229307. The cubic root of 261334652 is about 639.3406719048.

The spelling of 261334652 in words is "two hundred sixty-one million, three hundred thirty-four thousand, six hundred fifty-two".