64120103 has 4 divisors (see below), whose sum is σ = 64153248. Its totient is φ = 64086960.

The previous prime is 64120099. The next prime is 64120129. The reversal of 64120103 is 30102146.

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

It is a cyclic number.

It is not a de Polignac number, because 64120103 - 2² = 64120099 is a prime.

It is a super-2 number, since 2×64120103² = 8222775217461218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64120403) 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, 13478 + ... + 17603.

It is an arithmetic number, because the mean of its divisors is an integer number (16038312).

Almost surely, 2^64120103 is an apocalyptic number.

64120103 is a deficient number, since it is larger than the sum of its proper divisors (33145).

64120103 is a wasteful number, since it uses less digits than its factorization.

64120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33144.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 64120103 is about 8007.5029191378. The cubic root of 64120103 is about 400.2500582280.

Adding to 64120103 its reverse (30102146), we get a palindrome (94222249).

The spelling of 64120103 in words is "sixty-four million, one hundred twenty thousand, one hundred three".