5123021 has 4 divisors (see below), whose sum is σ = 5199552. Its totient is φ = 5046492.

The previous prime is 5123011. The next prime is 5123051. The reversal of 5123021 is 1203215.

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 a de Polignac number, because none of the positive numbers 2^k-5123021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5122987 and 5123005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38165 + ... + 38298.

It is an arithmetic number, because the mean of its divisors is an integer number (1299888).

Almost surely, 2^5123021 is an apocalyptic number.

It is an amenable number.

5123021 is a deficient number, since it is larger than the sum of its proper divisors (76531).

5123021 is an equidigital number, since it uses as much as digits as its factorization.

5123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76530.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 5123021 is about 2263.4091543510. The cubic root of 5123021 is about 172.3886672209.

Adding to 5123021 its reverse (1203215), we get a palindrome (6326236).

The spelling of 5123021 in words is "five million, one hundred twenty-three thousand, twenty-one".