7245749 has 4 divisors (see below), whose sum is σ = 8280864. Its totient is φ = 6210636.

The previous prime is 7245743. The next prime is 7245751. The reversal of 7245749 is 9475427.

7245749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-7245749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7245743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517547 + ... + 517560.

It is an arithmetic number, because the mean of its divisors is an integer number (2070216).

Almost surely, 2^7245749 is an apocalyptic number.

It is an amenable number.

7245749 is a deficient number, since it is larger than the sum of its proper divisors (1035115).

7245749 is a wasteful number, since it uses less digits than its factorization.

7245749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035114.

The product of its digits is 70560, while the sum is 38.

The square root of 7245749 is about 2691.7928969369. The cubic root of 7245749 is about 193.5059968273.

The spelling of 7245749 in words is "seven million, two hundred forty-five thousand, seven hundred forty-nine".