7125757 has 4 divisors (see below), whose sum is σ = 7157376. Its totient is φ = 7094140.

The previous prime is 7125751. The next prime is 7125761. The reversal of 7125757 is 7575217.

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 7125757 - 2¹⁵ = 7092989 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 (7125751) 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, 15469 + ... + 15922.

It is an arithmetic number, because the mean of its divisors is an integer number (1789344).

Almost surely, 2^7125757 is an apocalyptic number.

It is an amenable number.

7125757 is a deficient number, since it is larger than the sum of its proper divisors (31619).

7125757 is a wasteful number, since it uses less digits than its factorization.

7125757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31618.

The product of its digits is 17150, while the sum is 34.

The square root of 7125757 is about 2669.4113583335. The cubic root of 7125757 is about 192.4318710953.

The spelling of 7125757 in words is "seven million, one hundred twenty-five thousand, seven hundred fifty-seven".