64121103 has 24 divisors (see below), whose sum is σ = 94277040. Its totient is φ = 41990400.

The previous prime is 64121087. The next prime is 64121119. The reversal of 64121103 is 30112146.

It is a happy number.

64121103 is a `hidden beast` number, since 641 + 21 + 1 + 0 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (64121087) and next prime (64121119).

It is not a de Polignac number, because 64121103 - 2⁴ = 64121087 is a prime.

It is a super-2 number, since 2×64121103² = 8223031699873218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64121173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159703 + ... + 160103.

It is an arithmetic number, because the mean of its divisors is an integer number (3928210).

Almost surely, 2^64121103 is an apocalyptic number.

64121103 is a deficient number, since it is larger than the sum of its proper divisors (30155937).

64121103 is a wasteful number, since it uses less digits than its factorization.

64121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 64121103 is about 8007.5653603327. The cubic root of 64121103 is about 400.2521389481.

Adding to 64121103 its reverse (30112146), we get a palindrome (94233249).

The spelling of 64121103 in words is "sixty-four million, one hundred twenty-one thousand, one hundred three".