113261000 has 64 divisors (see below), whose sum is σ = 270157680. Its totient is φ = 44428800.

The previous prime is 113260999. The next prime is 113261003. The reversal of 113261000 is 162311.

It can be written as a sum of positive squares in 8 ways, for example, as 8836 + 113252164 = 94^2 + 10642^2 .

It is not an unprimeable number, because it can be changed into a prime (113261003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51932 + ... + 54068.

Almost surely, 2^113261000 is an apocalyptic number.

113261000 is a gapful number since it is divisible by the number (10) 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 113261000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135078840).

113261000 is an abundant number, since it is smaller than the sum of its proper divisors (156896680).

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

113261000 is a wasteful number, since it uses less digits than its factorization.

113261000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113261000 is about 10642.4151394315. The cubic root of 113261000 is about 483.8307470033.

The spelling of 113261000 in words is "one hundred thirteen million, two hundred sixty-one thousand".