74563541 has 8 divisors (see below), whose sum is σ = 80415384. Its totient is φ = 68728320.

The previous prime is 74563537. The next prime is 74563579. The reversal of 74563541 is 14536547.

It can be written as a sum of positive squares in 4 ways, for example, as 3076516 + 71487025 = 1754^2 + 8455^2 .

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 74563541 - 2² = 74563537 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 (74563141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6125 + ... + 13661.

It is an arithmetic number, because the mean of its divisors is an integer number (10051923).

Almost surely, 2^74563541 is an apocalyptic number.

It is an amenable number.

74563541 is a deficient number, since it is larger than the sum of its proper divisors (5851843).

74563541 is a wasteful number, since it uses less digits than its factorization.

74563541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311.

The product of its digits is 50400, while the sum is 35.

The square root of 74563541 is about 8635.0182976066. The cubic root of 74563541 is about 420.8966877878.

The spelling of 74563541 in words is "seventy-four million, five hundred sixty-three thousand, five hundred forty-one".