7125537 has 4 divisors (see below), whose sum is σ = 9500720. Its totient is φ = 4750356.

The previous prime is 7125527. The next prime is 7125553. The reversal of 7125537 is 7355217.

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 not a de Polignac number, because 7125537 - 2⁶ = 7125473 is a prime.

It is a Duffinian number.

7125537 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7125527) 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 3 ways as a sum of consecutive naturals, for example, 1187587 + ... + 1187592.

It is an arithmetic number, because the mean of its divisors is an integer number (2375180).

Almost surely, 2^7125537 is an apocalyptic number.

It is an amenable number.

7125537 is a deficient number, since it is larger than the sum of its proper divisors (2375183).

7125537 is a wasteful number, since it uses less digits than its factorization.

7125537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375182.

The product of its digits is 7350, while the sum is 30.

The square root of 7125537 is about 2669.3701504287. The cubic root of 7125537 is about 192.4298907000.

The spelling of 7125537 in words is "seven million, one hundred twenty-five thousand, five hundred thirty-seven".