261125132 has 24 divisors (see below), whose sum is σ = 494025840. Its totient is φ = 120346560.

The previous prime is 261125131. The next prime is 261125143. The reversal of 261125132 is 231521162.

It is a junction number, because it is equal to n+sod(n) for n = 261125098 and 261125107.

It is not an unprimeable number, because it can be changed into a prime (261125131) 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, 43619 + ... + 49242.

It is an arithmetic number, because the mean of its divisors is an integer number (20584410).

Almost surely, 2^261125132 is an apocalyptic number.

It is an amenable number.

261125132 is a deficient number, since it is larger than the sum of its proper divisors (232900708).

261125132 is a wasteful number, since it uses less digits than its factorization.

261125132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92921 (or 92919 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 261125132 is about 16159.3666955113. The cubic root of 261125132 is about 639.1697665528.

Adding to 261125132 its reverse (231521162), we get a palindrome (492646294).

The spelling of 261125132 in words is "two hundred sixty-one million, one hundred twenty-five thousand, one hundred thirty-two".