7513945 has 8 divisors (see below), whose sum is σ = 9169920. Its totient is φ = 5909040.

The previous prime is 7513931. The next prime is 7513951. The reversal of 7513945 is 5493157.

7513945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7513945 - 2¹³ = 7505753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7513945.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12441 + ... + 13030.

It is an arithmetic number, because the mean of its divisors is an integer number (1146240).

Almost surely, 2^7513945 is an apocalyptic number.

It is an amenable number.

7513945 is a deficient number, since it is larger than the sum of its proper divisors (1655975).

7513945 is a wasteful number, since it uses less digits than its factorization.

7513945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25535.

The product of its digits is 18900, while the sum is 34.

The square root of 7513945 is about 2741.1576021820. The cubic root of 7513945 is about 195.8646243445.

The spelling of 7513945 in words is "seven million, five hundred thirteen thousand, nine hundred forty-five".