74545153 has 4 divisors (see below), whose sum is σ = 78930180. Its totient is φ = 70160128.

The previous prime is 74545129. The next prime is 74545183. The reversal of 74545153 is 35154547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35154547 = 4373 ⋅8039.

It can be written as a sum of positive squares in 2 ways, for example, as 36204289 + 38340864 = 6017^2 + 6192^2 .

It is a cyclic number.

It is not a de Polignac number, because 74545153 - 2¹³ = 74536961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74545123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2192488 + ... + 2192521.

It is an arithmetic number, because the mean of its divisors is an integer number (19732545).

Almost surely, 2^74545153 is an apocalyptic number.

It is an amenable number.

74545153 is a deficient number, since it is larger than the sum of its proper divisors (4385027).

74545153 is a wasteful number, since it uses less digits than its factorization.

74545153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385026.

The product of its digits is 42000, while the sum is 34.

The square root of 74545153 is about 8633.9534976742. The cubic root of 74545153 is about 420.8620860486.

The spelling of 74545153 in words is "seventy-four million, five hundred forty-five thousand, one hundred fifty-three".