261159300 has 216 divisors, whose sum is σ = 856320192. Its totient is φ = 66528000.

The previous prime is 261159293. The next prime is 261159323. The reversal of 261159300 is 3951162.

261159300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3678265 + ... + 3678335.

Almost surely, 2^261159300 is an apocalyptic number.

261159300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 261159300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428160096).

261159300 is an abundant number, since it is smaller than the sum of its proper divisors (595160892).

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

261159300 is a wasteful number, since it uses less digits than its factorization.

261159300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 261159300 is about 16160.4238805794. The cubic root of 261159300 is about 639.1976436092.

The spelling of 261159300 in words is "two hundred sixty-one million, one hundred fifty-nine thousand, three hundred".