64850121 has 48 divisors (see below), whose sum is σ = 114386688. Its totient is φ = 34560000.

The previous prime is 64850113. The next prime is 64850129. The reversal of 64850121 is 12105846.

64850121 is a `hidden beast` number, since 648 + 5 + 0 + 12 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (64850113) and next prime (64850129).

It is not a de Polignac number, because 64850121 - 2³ = 64850113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64850129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161521 + ... + 161921.

It is an arithmetic number, because the mean of its divisors is an integer number (2383056).

Almost surely, 2^64850121 is an apocalyptic number.

It is an amenable number.

64850121 is a deficient number, since it is larger than the sum of its proper divisors (49536567).

64850121 is a wasteful number, since it uses less digits than its factorization.

64850121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 64850121 is about 8052.9572828868. The cubic root of 64850121 is about 401.7633009194.

Adding to 64850121 its reverse (12105846), we get a palindrome (76955967).

The spelling of 64850121 in words is "sixty-four million, eight hundred fifty thousand, one hundred twenty-one".