7472121 has 4 divisors (see below), whose sum is σ = 9962832. Its totient is φ = 4981412.

The previous prime is 7472089. The next prime is 7472123. The reversal of 7472121 is 1212747.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1212747 = 3 ⋅404249.

It is a cyclic number.

It is not a de Polignac number, because 7472121 - 2⁵ = 7472089 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7472091 and 7472100.

It is not an unprimeable number, because it can be changed into a prime (7472123) 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, 1245351 + ... + 1245356.

It is an arithmetic number, because the mean of its divisors is an integer number (2490708).

Almost surely, 2^7472121 is an apocalyptic number.

It is an amenable number.

7472121 is a deficient number, since it is larger than the sum of its proper divisors (2490711).

7472121 is a wasteful number, since it uses less digits than its factorization.

7472121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490710.

The product of its digits is 784, while the sum is 24.

The square root of 7472121 is about 2733.5180628633. The cubic root of 7472121 is about 195.5005418142.

Adding to 7472121 its reverse (1212747), we get a palindrome (8684868).

The spelling of 7472121 in words is "seven million, four hundred seventy-two thousand, one hundred twenty-one".