74752543 has 8 divisors (see below), whose sum is σ = 77338512. Its totient is φ = 72196416.

The previous prime is 74752541. The next prime is 74752547. The reversal of 74752543 is 34525747.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 74752543 - 2¹ = 74752541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74752541) 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, 2305 + ... + 12442.

It is an arithmetic number, because the mean of its divisors is an integer number (9667314).

Almost surely, 2^74752543 is an apocalyptic number.

74752543 is a deficient number, since it is larger than the sum of its proper divisors (2585969).

74752543 is a wasteful number, since it uses less digits than its factorization.

74752543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921.

The product of its digits is 117600, while the sum is 37.

The square root of 74752543 is about 8645.9552971317. The cubic root of 74752543 is about 421.2520142431.

The spelling of 74752543 in words is "seventy-four million, seven hundred fifty-two thousand, five hundred forty-three".