261132526 has 16 divisors (see below), whose sum is σ = 403377408. Its totient is φ = 126707200.

The previous prime is 261132481. The next prime is 261132527. The reversal of 261132526 is 625231162.

261132526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×261132526² = 136380392270281352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 261132494 and 261132503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261132527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7326 + ... + 23998.

It is an arithmetic number, because the mean of its divisors is an integer number (25211088).

Almost surely, 2^261132526 is an apocalyptic number.

261132526 is a deficient number, since it is larger than the sum of its proper divisors (142244882).

261132526 is a wasteful number, since it uses less digits than its factorization.

261132526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16907.

The product of its digits is 4320, while the sum is 28.

The square root of 261132526 is about 16159.5954776102. The cubic root of 261132526 is about 639.1757993906.

Adding to 261132526 its reverse (625231162), we get a palindrome (886363688).

The spelling of 261132526 in words is "two hundred sixty-one million, one hundred thirty-two thousand, five hundred twenty-six".