261332 has 12 divisors (see below), whose sum is σ = 463680. Its totient is φ = 128856.

The previous prime is 261329. The next prime is 261337. The reversal of 261332 is 233162.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 261332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261337) 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, 98 + ... + 729.

It is an arithmetic number, because the mean of its divisors is an integer number (38640).

2²⁶¹³³² is an apocalyptic number.

It is an amenable number.

261332 is a deficient number, since it is larger than the sum of its proper divisors (202348).

261332 is a wasteful number, since it uses less digits than its factorization.

261332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 908 counting only the distinct ones).

The product of its digits is 216, while the sum is 17.

The square root of 261332 is about 511.2064162352. The cubic root of 261332 is about 63.9338509241.

Adding to 261332 its reverse (233162), we get a palindrome (494494).

The spelling of 261332 in words is "two hundred sixty-one thousand, three hundred thirty-two".