7426121 has 4 divisors (see below), whose sum is σ = 7495632. Its totient is φ = 7356612.

The previous prime is 7426109. The next prime is 7426129. The reversal of 7426121 is 1216247.

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: 1216247 = 19 ⋅64013.

It is a cyclic number.

It is not a de Polignac number, because 7426121 - 2¹⁴ = 7409737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7426129) 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, 34595 + ... + 34808.

It is an arithmetic number, because the mean of its divisors is an integer number (1873908).

Almost surely, 2^7426121 is an apocalyptic number.

It is an amenable number.

7426121 is a deficient number, since it is larger than the sum of its proper divisors (69511).

7426121 is a wasteful number, since it uses less digits than its factorization.

7426121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69510.

The product of its digits is 672, while the sum is 23.

The square root of 7426121 is about 2725.0910076546. The cubic root of 7426121 is about 195.0985344664.

The spelling of 7426121 in words is "seven million, four hundred twenty-six thousand, one hundred twenty-one".