261700132 has 12 divisors (see below), whose sum is σ = 458099740. Its totient is φ = 130814496.

The previous prime is 261700123. The next prime is 261700133. The reversal of 261700132 is 231007162.

261700132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63904036 + 197796096 = 7994^2 + 14064^2 .

It is not an unprimeable number, because it can be changed into a prime (261700133) 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, 14494 + ... + 27082.

Almost surely, 2^261700132 is an apocalyptic number.

It is an amenable number.

261700132 is a deficient number, since it is larger than the sum of its proper divisors (196399608).

261700132 is a wasteful number, since it uses less digits than its factorization.

261700132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17790 (or 17788 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 261700132 is about 16177.1484508241. The cubic root of 261700132 is about 639.6385752293.

Adding to 261700132 its reverse (231007162), we get a palindrome (492707294).

The spelling of 261700132 in words is "two hundred sixty-one million, seven hundred thousand, one hundred thirty-two".