7281601 has 4 divisors (see below), whose sum is σ = 7297792. Its totient is φ = 7265412.

The previous prime is 7281587. The next prime is 7281629. The reversal of 7281601 is 1061827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7281601 - 2⁷ = 7281473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7281301) 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, 7401 + ... + 8326.

It is an arithmetic number, because the mean of its divisors is an integer number (1824448).

Almost surely, 2^7281601 is an apocalyptic number.

It is an amenable number.

7281601 is a deficient number, since it is larger than the sum of its proper divisors (16191).

7281601 is a wasteful number, since it uses less digits than its factorization.

7281601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 7281601 is about 2698.4441813756. Note that the first 3 decimals coincide. The cubic root of 7281601 is about 193.8246280671.

The spelling of 7281601 in words is "seven million, two hundred eighty-one thousand, six hundred one".