7051481 has 4 divisors (see below), whose sum is σ = 7466292. Its totient is φ = 6636672.

The previous prime is 7051469. The next prime is 7051523. The reversal of 7051481 is 1841507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1841507 = 47 ⋅39181.

It can be written as a sum of positive squares in 2 ways, for example, as 3115225 + 3936256 = 1765^2 + 1984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7051481 is a prime.

It is a super-2 number, since 2×7051481² = 99446768586722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7051481.

It is not an unprimeable number, because it can be changed into a prime (7051411) 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, 207380 + ... + 207413.

It is an arithmetic number, because the mean of its divisors is an integer number (1866573).

Almost surely, 2^7051481 is an apocalyptic number.

It is an amenable number.

7051481 is a deficient number, since it is larger than the sum of its proper divisors (414811).

7051481 is a wasteful number, since it uses less digits than its factorization.

7051481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414810.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 7051481 is about 2655.4624832597. The cubic root of 7051481 is about 191.7609238553.

Adding to 7051481 its sum of digits (26), we get a palindrome (7051507).

Adding to 7051481 its reverse (1841507), we get a palindrome (8892988).

The spelling of 7051481 in words is "seven million, fifty-one thousand, four hundred eighty-one".