113145473 has 4 divisors (see below), whose sum is σ = 129309120. Its totient is φ = 96981828.

The previous prime is 113145469. The next prime is 113145479. The reversal of 113145473 is 374541311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113145473 - 2² = 113145469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113145479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8081813 + ... + 8081826.

It is an arithmetic number, because the mean of its divisors is an integer number (32327280).

Almost surely, 2^113145473 is an apocalyptic number.

It is an amenable number.

113145473 is a deficient number, since it is larger than the sum of its proper divisors (16163647).

113145473 is an equidigital number, since it uses as much as digits as its factorization.

113145473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16163646.

The product of its digits is 5040, while the sum is 29.

The square root of 113145473 is about 10636.9860862934. The cubic root of 113145473 is about 483.6661874753. Note that the first 3 decimals are identical.

Adding to 113145473 its reverse (374541311), we get a palindrome (487686784).

The spelling of 113145473 in words is "one hundred thirteen million, one hundred forty-five thousand, four hundred seventy-three".