5121001 has 4 divisors (see below), whose sum is σ = 5129104. Its totient is φ = 5112900.

The previous prime is 5120963. The next prime is 5121007. The reversal of 5121001 is 1001215.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5121001 - 2²¹ = 3023849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121007) 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, 3015 + ... + 4396.

It is an arithmetic number, because the mean of its divisors is an integer number (1282276).

Almost surely, 2^5121001 is an apocalyptic number.

It is an amenable number.

5121001 is a deficient number, since it is larger than the sum of its proper divisors (8103).

5121001 is an equidigital number, since it uses as much as digits as its factorization.

5121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8102.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 5121001 is about 2262.9628808268. The cubic root of 5121001 is about 172.3660067057.

Adding to 5121001 its reverse (1001215), we get a palindrome (6122216).

The spelling of 5121001 in words is "five million, one hundred twenty-one thousand, one".