10117645 has 4 divisors (see below), whose sum is σ = 12141180. Its totient is φ = 8094112.

The previous prime is 10117619. The next prime is 10117663. The reversal of 10117645 is 54671101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54671101 = 1091 ⋅50111.

It can be written as a sum of positive squares in 2 ways, for example, as 1857769 + 8259876 = 1363^2 + 2874^2 .

It is a cyclic number.

It is not a de Polignac number, because 10117645 - 2⁷ = 10117517 is a prime.

It is a super-3 number, since 3×10117645³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011760 + ... + 1011769.

It is an arithmetic number, because the mean of its divisors is an integer number (3035295).

Almost surely, 2^10117645 is an apocalyptic number.

It is an amenable number.

10117645 is a deficient number, since it is larger than the sum of its proper divisors (2023535).

10117645 is an equidigital number, since it uses as much as digits as its factorization.

10117645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023534.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 10117645 is about 3180.8245786274. The cubic root of 10117645 is about 216.2850389279.

Adding to 10117645 its reverse (54671101), we get a palindrome (64788746).

The spelling of 10117645 in words is "ten million, one hundred seventeen thousand, six hundred forty-five".