7412121 has 16 divisors (see below), whose sum is σ = 11032320. Its totient is φ = 4918320.

The previous prime is 7412117. The next prime is 7412123. The reversal of 7412121 is 1212147.

It is not a de Polignac number, because 7412121 - 2² = 7412117 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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

7412121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7412094 and 7412103.

It is not an unprimeable number, because it can be changed into a prime (7412123) 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 15 ways as a sum of consecutive naturals, for example, 6811 + ... + 7823.

It is an arithmetic number, because the mean of its divisors is an integer number (689520).

Almost surely, 2^7412121 is an apocalyptic number.

It is an amenable number.

7412121 is a deficient number, since it is larger than the sum of its proper divisors (3620199).

7412121 is a wasteful number, since it uses less digits than its factorization.

7412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1287 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 7412121 is about 2722.5210742986. The cubic root of 7412121 is about 194.9758549986.

Adding to 7412121 its reverse (1212147), we get a palindrome (8624268).

The spelling of 7412121 in words is "seven million, four hundred twelve thousand, one hundred twenty-one".