75141645 has 8 divisors (see below), whose sum is σ = 120226656. Its totient is φ = 40075536.

The previous prime is 75141641. The next prime is 75141727. The reversal of 75141645 is 54614157.

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

It is not a de Polignac number, because 75141645 - 2² = 75141641 is a prime.

It is a super-3 number, since 3×75141645³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75141641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504707 + ... + 2504736.

It is an arithmetic number, because the mean of its divisors is an integer number (15028332).

Almost surely, 2^75141645 is an apocalyptic number.

It is an amenable number.

75141645 is a deficient number, since it is larger than the sum of its proper divisors (45085011).

75141645 is a wasteful number, since it uses less digits than its factorization.

75141645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009451.

The product of its digits is 16800, while the sum is 33.

The square root of 75141645 is about 8668.4280581891. The cubic root of 75141645 is about 421.9816501833.

The spelling of 75141645 in words is "seventy-five million, one hundred forty-one thousand, six hundred forty-five".