7481345 has 16 divisors (see below), whose sum is σ = 9612480. Its totient is φ = 5572800.

The previous prime is 7481339. The next prime is 7481351. The reversal of 7481345 is 5431847.

7481345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7481339) and next prime (7481351).

It is not a de Polignac number, because 7481345 - 2⁶ = 7481281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5150 + ... + 6440.

It is an arithmetic number, because the mean of its divisors is an integer number (600780).

Almost surely, 2^7481345 is an apocalyptic number.

It is an amenable number.

7481345 is a deficient number, since it is larger than the sum of its proper divisors (2131135).

7481345 is a wasteful number, since it uses less digits than its factorization.

7481345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its digits is 13440, while the sum is 32.

The square root of 7481345 is about 2735.2047455355. The cubic root of 7481345 is about 195.5809543003.

The spelling of 7481345 in words is "seven million, four hundred eighty-one thousand, three hundred forty-five".