75230645 has 16 divisors (see below), whose sum is σ = 106503168. Its totient is φ = 49921920.

The previous prime is 75230621. The next prime is 75230647. The reversal of 75230645 is 54603257.

It is not a de Polignac number, because 75230645 - 2¹² = 75226549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75230647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33584 + ... + 35753.

It is an arithmetic number, because the mean of its divisors is an integer number (6656448).

Almost surely, 2^75230645 is an apocalyptic number.

It is an amenable number.

75230645 is a deficient number, since it is larger than the sum of its proper divisors (31272523).

75230645 is a wasteful number, since it uses less digits than its factorization.

75230645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69380.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 75230645 is about 8673.5601110501. The cubic root of 75230645 is about 422.1481869907.

The spelling of 75230645 in words is "seventy-five million, two hundred thirty thousand, six hundred forty-five".