7356121 has 4 divisors (see below), whose sum is σ = 7788852. Its totient is φ = 6923392.

The previous prime is 7356119. The next prime is 7356149. The reversal of 7356121 is 1216537.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2673225 + 4682896 = 1635^2 + 2164^2 .

It is a cyclic number.

It is not a de Polignac number, because 7356121 - 2¹ = 7356119 is a prime.

It is a super-2 number, since 2×7356121² = 108225032333282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7356191) 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, 216340 + ... + 216373.

It is an arithmetic number, because the mean of its divisors is an integer number (1947213).

Almost surely, 2^7356121 is an apocalyptic number.

It is an amenable number.

7356121 is a deficient number, since it is larger than the sum of its proper divisors (432731).

7356121 is a wasteful number, since it uses less digits than its factorization.

7356121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432730.

The product of its digits is 1260, while the sum is 25.

The square root of 7356121 is about 2712.2169898443. The cubic root of 7356121 is about 194.4835864844.

The spelling of 7356121 in words is "seven million, three hundred fifty-six thousand, one hundred twenty-one".