261041252 has 24 divisors (see below), whose sum is σ = 465763200. Its totient is φ = 127977696.

The previous prime is 261041251. The next prime is 261041269. The reversal of 261041252 is 252140162.

It is a happy number.

261041252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (261041251) 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, 108074 + ... + 110462.

It is an arithmetic number, because the mean of its divisors is an integer number (19406800).

Almost surely, 2^261041252 is an apocalyptic number.

It is an amenable number.

261041252 is a deficient number, since it is larger than the sum of its proper divisors (204721948).

261041252 is a wasteful number, since it uses less digits than its factorization.

261041252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 261041252 is about 16156.7710883085. The cubic root of 261041252 is about 639.1013200558.

The spelling of 261041252 in words is "two hundred sixty-one million, forty-one thousand, two hundred fifty-two".