7749125 has 16 divisors (see below), whose sum is σ = 9884160. Its totient is φ = 6062800.

The previous prime is 7749121. The next prime is 7749149. The reversal of 7749125 is 5219477.

It is not a de Polignac number, because 7749125 - 2² = 7749121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7749121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5216 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (617760).

Almost surely, 2^7749125 is an apocalyptic number.

It is an amenable number.

7749125 is a deficient number, since it is larger than the sum of its proper divisors (2135035).

7749125 is a wasteful number, since it uses less digits than its factorization.

7749125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381 (or 1371 counting only the distinct ones).

The product of its digits is 17640, while the sum is 35.

The square root of 7749125 is about 2783.7250223397. The cubic root of 7749125 is about 197.8871325582.

It can be divided in two parts, 77 and 49125, that multiplied together give a triangular number (3782625 = T₂₇₅₀).

The spelling of 7749125 in words is "seven million, seven hundred forty-nine thousand, one hundred twenty-five".