261141102 has 24 divisors (see below), whose sum is σ = 567637200. Its totient is φ = 86765280.

The previous prime is 261141091. The next prime is 261141109. The reversal of 261141102 is 201141162.

261141102 is a `hidden beast` number, since 2 + 611 + 41 + 10 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261141109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17727 + ... + 28922.

It is an arithmetic number, because the mean of its divisors is an integer number (23651550).

Almost surely, 2^261141102 is an apocalyptic number.

261141102 is an abundant number, since it is smaller than the sum of its proper divisors (306496098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261141102 is a wasteful number, since it uses less digits than its factorization.

261141102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46968 (or 46965 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 261141102 is about 16159.8608286086. The cubic root of 261141102 is about 639.1827964911.

Adding to 261141102 its reverse (201141162), we get a palindrome (462282264).

The spelling of 261141102 in words is "two hundred sixty-one million, one hundred forty-one thousand, one hundred two".