7450121 has 8 divisors (see below), whose sum is σ = 8569920. Its totient is φ = 6344208.

The previous prime is 7450117. The next prime is 7450123. The reversal of 7450121 is 1210547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7450121 - 2² = 7450117 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7450093 and 7450102.

It is not an unprimeable number, because it can be changed into a prime (7450123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291 + ... + 4488.

It is an arithmetic number, because the mean of its divisors is an integer number (1071240).

Almost surely, 2^7450121 is an apocalyptic number.

It is an amenable number.

7450121 is a deficient number, since it is larger than the sum of its proper divisors (1119799).

7450121 is a wasteful number, since it uses less digits than its factorization.

7450121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 7450121 is about 2729.4909781862. The cubic root of 7450121 is about 195.3084838982.

Adding to 7450121 its reverse (1210547), we get a palindrome (8660668).

The spelling of 7450121 in words is "seven million, four hundred fifty thousand, one hundred twenty-one".