7521412 has 12 divisors (see below), whose sum is σ = 13936860. Its totient is φ = 3539456.

The previous prime is 7521407. The next prime is 7521421. The reversal of 7521412 is 2141257.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6320196 + 1201216 = 2514^2 + 1096^2 .

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, 55237 + ... + 55372.

It is an arithmetic number, because the mean of its divisors is an integer number (1161405).

Almost surely, 2^7521412 is an apocalyptic number.

It is an amenable number.

7521412 is a deficient number, since it is larger than the sum of its proper divisors (6415448).

7521412 is a wasteful number, since it uses less digits than its factorization.

7521412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110630 (or 110628 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 7521412 is about 2742.5192797864. The cubic root of 7521412 is about 195.9294831706.

Adding to 7521412 its reverse (2141257), we get a palindrome (9662669).

The spelling of 7521412 in words is "seven million, five hundred twenty-one thousand, four hundred twelve".