75276745 has 8 divisors (see below), whose sum is σ = 91813320. Its totient is φ = 59233920.

The previous prime is 75276739. The next prime is 75276749. The reversal of 75276745 is 54767257.

It can be written as a sum of positive squares in 4 ways, for example, as 678976 + 74597769 = 824^2 + 8637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75276745 - 2⁵ = 75276713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75276749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123100 + ... + 123709.

It is an arithmetic number, because the mean of its divisors is an integer number (11476665).

Almost surely, 2^75276745 is an apocalyptic number.

It is an amenable number.

75276745 is a deficient number, since it is larger than the sum of its proper divisors (16536575).

75276745 is a wasteful number, since it uses less digits than its factorization.

75276745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246875.

The product of its digits is 411600, while the sum is 43.

The square root of 75276745 is about 8676.2172056721. The cubic root of 75276745 is about 422.2343976816.

The spelling of 75276745 in words is "seventy-five million, two hundred seventy-six thousand, seven hundred forty-five".