7245681 has 8 divisors (see below), whose sum is σ = 9688704. Its totient is φ = 4816560.

The previous prime is 7245677. The next prime is 7245701. The reversal of 7245681 is 1865427.

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

It is not a de Polignac number, because 7245681 - 2² = 7245677 is a prime.

It is a super-2 number, since 2×7245681² = 104999786307522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7245671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190 + ... + 4391.

It is an arithmetic number, because the mean of its divisors is an integer number (1211088).

Almost surely, 2^7245681 is an apocalyptic number.

It is an amenable number.

7245681 is a deficient number, since it is larger than the sum of its proper divisors (2443023).

7245681 is a wasteful number, since it uses less digits than its factorization.

7245681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951.

The product of its digits is 13440, while the sum is 33.

The square root of 7245681 is about 2691.7802659207. The cubic root of 7245681 is about 193.5053914862.

It can be divided in two parts, 72 and 45681, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 7245681 in words is "seven million, two hundred forty-five thousand, six hundred eighty-one".