74112545 has 16 divisors (see below), whose sum is σ = 99081360. Its totient is φ = 52840704.

The previous prime is 74112541. The next prime is 74112551. The reversal of 74112545 is 54521147.

It can be written as a sum of positive squares in 8 ways, for example, as 358801 + 73753744 = 599^2 + 8588^2 .

It is a cyclic number.

It is not a de Polignac number, because 74112545 - 2² = 74112541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (74112541) 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 15 ways as a sum of consecutive naturals, for example, 17774 + ... + 21543.

It is an arithmetic number, because the mean of its divisors is an integer number (6192585).

Almost surely, 2^74112545 is an apocalyptic number.

It is an amenable number.

74112545 is a deficient number, since it is larger than the sum of its proper divisors (24968815).

74112545 is a wasteful number, since it uses less digits than its factorization.

74112545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39364.

The product of its digits is 5600, while the sum is 29.

The square root of 74112545 is about 8608.8643269597. The cubic root of 74112545 is about 420.0463762093.

It can be divided in two parts, 741125 and 45, that multiplied together give a square (33350625 = 5775²).

The spelling of 74112545 in words is "seventy-four million, one hundred twelve thousand, five hundred forty-five".