261141532 has 6 divisors (see below), whose sum is σ = 456997688. Its totient is φ = 130570764.

The previous prime is 261141527. The next prime is 261141571. The reversal of 261141532 is 235141162.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 261141497 and 261141506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32642688 + ... + 32642695.

Almost surely, 2^261141532 is an apocalyptic number.

It is an amenable number.

261141532 is a deficient number, since it is larger than the sum of its proper divisors (195856156).

261141532 is a wasteful number, since it uses less digits than its factorization.

261141532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65285387 (or 65285385 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 261141532 is about 16159.8741331732. The cubic root of 261141532 is about 639.1831473212.

Adding to 261141532 its reverse (235141162), we get a palindrome (496282694).

The spelling of 261141532 in words is "two hundred sixty-one million, one hundred forty-one thousand, five hundred thirty-two".