7125208545 has 32 divisors (see below), whose sum is σ = 14031182592. Its totient is φ = 3006680832.

The previous prime is 7125208543. The next prime is 7125208561. The reversal of 7125208545 is 5458025217.

It is not a de Polignac number, because 7125208545 - 2¹ = 7125208543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (7125208543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2608602 + ... + 2611331.

It is an arithmetic number, because the mean of its divisors is an integer number (438474456).

Almost surely, 2^7125208545 is an apocalyptic number.

It is an amenable number.

7125208545 is a deficient number, since it is larger than the sum of its proper divisors (6905974047).

7125208545 is a wasteful number, since it uses less digits than its factorization.

7125208545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219961.

The product of its (nonzero) digits is 112000, while the sum is 39.

The square root of 7125208545 is about 84410.9503855987. The cubic root of 7125208545 is about 1924.2693393890.

The spelling of 7125208545 in words is "seven billion, one hundred twenty-five million, two hundred eight thousand, five hundred forty-five".