113251005 has 36 divisors (see below), whose sum is σ = 228355452. Its totient is φ = 51770880.

The previous prime is 113250937. The next prime is 113251007. The reversal of 113251005 is 500152311.

It can be written as a sum of positive squares in 2 ways, for example, as 18714276 + 94536729 = 4326^2 + 9723^2 .

It is not a de Polignac number, because 113251005 - 2⁹ = 113250493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113251007) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23476 + ... + 27885.

It is an arithmetic number, because the mean of its divisors is an integer number (6343207).

Almost surely, 2^113251005 is an apocalyptic number.

113251005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113251005 is an abundant number, since it is smaller than the sum of its proper divisors (115104447).

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

113251005 is a wasteful number, since it uses less digits than its factorization.

113251005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51386 (or 51376 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 113251005 is about 10641.9455458107. The cubic root of 113251005 is about 483.8165143002.

The spelling of 113251005 in words is "one hundred thirteen million, two hundred fifty-one thousand, five".