113402505 has 8 divisors (see below), whose sum is σ = 181444032. Its totient is φ = 60481328.

The previous prime is 113402503. The next prime is 113402537. The reversal of 113402505 is 505204311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113402505 - 2¹ = 113402503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113402503) 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 7 ways as a sum of consecutive naturals, for example, 3780069 + ... + 3780098.

It is an arithmetic number, because the mean of its divisors is an integer number (22680504).

Almost surely, 2^113402505 is an apocalyptic number.

113402505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113402505 is a deficient number, since it is larger than the sum of its proper divisors (68041527).

113402505 is an equidigital number, since it uses as much as digits as its factorization.

113402505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560175.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 113402505 is about 10649.0612262302. The cubic root of 113402505 is about 484.0321578365.

Adding to 113402505 its reverse (505204311), we get a palindrome (618606816).

The spelling of 113402505 in words is "one hundred thirteen million, four hundred two thousand, five hundred five".