113145601 has 2 divisors, whose sum is σ = 113145602. Its totient is φ = 113145600.

The previous prime is 113145587. The next prime is 113145607. The reversal of 113145601 is 106541311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112784400 + 361201 = 10620^2 + 601^2 .

It is an emirp because it is prime and its reverse (106541311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113145601 - 2¹⁷ = 113014529 is a prime.

It is not a weakly prime, because it can be changed into another prime (113145607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56572800 + 56572801.

It is an arithmetic number, because the mean of its divisors is an integer number (56572801).

Almost surely, 2^113145601 is an apocalyptic number.

It is an amenable number.

113145601 is a deficient number, since it is larger than the sum of its proper divisors (1).

113145601 is an equidigital number, since it uses as much as digits as its factorization.

113145601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 113145601 is about 10636.9921030336. The cubic root of 113145601 is about 483.6663698637. Note that the first 3 decimals are identical.

Adding to 113145601 its reverse (106541311), we get a palindrome (219686912).

The spelling of 113145601 in words is "one hundred thirteen million, one hundred forty-five thousand, six hundred one".