75082749 has 12 divisors (see below), whose sum is σ = 116455104. Its totient is φ = 42904344.

The previous prime is 75082723. The next prime is 75082757. The reversal of 75082749 is 94728057.

It is not a de Polignac number, because 75082749 - 2⁷ = 75082621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75082749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75082759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255237 + ... + 255530.

It is an arithmetic number, because the mean of its divisors is an integer number (9704592).

Almost surely, 2^75082749 is an apocalyptic number.

It is an amenable number.

75082749 is a deficient number, since it is larger than the sum of its proper divisors (41372355).

75082749 is a wasteful number, since it uses less digits than its factorization.

75082749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510784 (or 510777 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 75082749 is about 8665.0302365312. The cubic root of 75082749 is about 421.8713716670.

The spelling of 75082749 in words is "seventy-five million, eighty-two thousand, seven hundred forty-nine".