74561109 has 16 divisors (see below), whose sum is σ = 113907840. Its totient is φ = 42497280.

The previous prime is 74561063. The next prime is 74561159. The reversal of 74561109 is 90116547.

It is not a de Polignac number, because 74561109 - 2¹³ = 74552917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74561109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74561159) 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, 4249 + ... + 12929.

It is an arithmetic number, because the mean of its divisors is an integer number (7119240).

Almost surely, 2^74561109 is an apocalyptic number.

It is an amenable number.

74561109 is a deficient number, since it is larger than the sum of its proper divisors (39346731).

74561109 is a wasteful number, since it uses less digits than its factorization.

74561109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 74561109 is about 8634.8774745216. The cubic root of 74561109 is about 420.8921116824.

The spelling of 74561109 in words is "seventy-four million, five hundred sixty-one thousand, one hundred nine".