261158350 has 24 divisors (see below), whose sum is σ = 497055240. Its totient is φ = 102033120.

The previous prime is 261158347. The next prime is 261158351. The reversal of 261158350 is 53851162.

261158350 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261158351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58585 + ... + 62884.

It is an arithmetic number, because the mean of its divisors is an integer number (20710635).

Almost surely, 2^261158350 is an apocalyptic number.

261158350 is a deficient number, since it is larger than the sum of its proper divisors (235896890).

261158350 is a wasteful number, since it uses less digits than its factorization.

261158350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121524 (or 121519 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 261158350 is about 16160.3944877593. The cubic root of 261158350 is about 639.1968685542.

The spelling of 261158350 in words is "two hundred sixty-one million, one hundred fifty-eight thousand, three hundred fifty".