7121242 has 8 divisors (see below), whose sum is σ = 10970676. Its totient is φ = 3464352.

The previous prime is 7121209. The next prime is 7121263. The reversal of 7121242 is 2421217.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5480281 + 1640961 = 2341^2 + 1281^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48043 + ... + 48190.

Almost surely, 2^7121242 is an apocalyptic number.

7121242 is a deficient number, since it is larger than the sum of its proper divisors (3849434).

7121242 is a wasteful number, since it uses less digits than its factorization.

7121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96272.

The product of its digits is 224, while the sum is 19.

The square root of 7121242 is about 2668.5655322664. The cubic root of 7121242 is about 192.3912198136.

Adding to 7121242 its reverse (2421217), we get a palindrome (9542459).

The spelling of 7121242 in words is "seven million, one hundred twenty-one thousand, two hundred forty-two".