7145757 has 12 divisors (see below), whose sum is σ = 10387104. Its totient is φ = 4733640.

The previous prime is 7145737. The next prime is 7145759. The reversal of 7145757 is 7575417.

It is not a de Polignac number, because 7145757 - 2⁶ = 7145693 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 969 + ... + 3902.

It is an arithmetic number, because the mean of its divisors is an integer number (865592).

Almost surely, 2^7145757 is an apocalyptic number.

It is an amenable number.

7145757 is a deficient number, since it is larger than the sum of its proper divisors (3241347).

7145757 is a wasteful number, since it uses less digits than its factorization.

7145757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040 (or 5037 counting only the distinct ones).

The product of its digits is 34300, while the sum is 36.

The square root of 7145757 is about 2673.1548776680. The cubic root of 7145757 is about 192.6117370073.

The spelling of 7145757 in words is "seven million, one hundred forty-five thousand, seven hundred fifty-seven".