658940113 has 4 divisors (see below), whose sum is σ = 709627828. Its totient is φ = 608252400.

The previous prime is 658940099. The next prime is 658940119. The reversal of 658940113 is 311049856.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172869904 + 486070209 = 13148^2 + 22047^2 .

It is a cyclic number.

It is not a de Polignac number, because 658940113 - 2⁵ = 658940081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (658940119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25343838 + ... + 25343863.

It is an arithmetic number, because the mean of its divisors is an integer number (177406957).

Almost surely, 2^658940113 is an apocalyptic number.

It is an amenable number.

658940113 is a deficient number, since it is larger than the sum of its proper divisors (50687715).

658940113 is a wasteful number, since it uses less digits than its factorization.

658940113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50687714.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 658940113 is about 25669.8288463324. The cubic root of 658940113 is about 870.1924588530.

Adding to 658940113 its reverse (311049856), we get a palindrome (969989969).

The spelling of 658940113 in words is "six hundred fifty-eight million, nine hundred forty thousand, one hundred thirteen".