7081481 has 16 divisors (see below), whose sum is σ = 8121600. Its totient is φ = 6115200.

The previous prime is 7081457. The next prime is 7081499. The reversal of 7081481 is 1841807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7081481 is a prime.

It is a super-2 number, since 2×7081481² = 100294746306722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7081411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25061 + ... + 25341.

It is an arithmetic number, because the mean of its divisors is an integer number (507600).

Almost surely, 2^7081481 is an apocalyptic number.

It is an amenable number.

7081481 is a deficient number, since it is larger than the sum of its proper divisors (1040119).

7081481 is a wasteful number, since it uses less digits than its factorization.

7081481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 7081481 is about 2661.1052215198. The cubic root of 7081481 is about 192.0324832917.

The spelling of 7081481 in words is "seven million, eighty-one thousand, four hundred eighty-one".