74081225 has 12 divisors (see below), whose sum is σ = 95029260. Its totient is φ = 57220800.

The previous prime is 74081221. The next prime is 74081233. The reversal of 74081225 is 52218047.

It can be written as a sum of positive squares in 6 ways, for example, as 14235529 + 59845696 = 3773^2 + 7736^2 .

It is not a de Polignac number, because 74081225 - 2² = 74081221 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74081221) 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 11 ways as a sum of consecutive naturals, for example, 50366 + ... + 51815.

It is an arithmetic number, because the mean of its divisors is an integer number (7919105).

Almost surely, 2^74081225 is an apocalyptic number.

It is an amenable number.

74081225 is a deficient number, since it is larger than the sum of its proper divisors (20948035).

74081225 is a wasteful number, since it uses less digits than its factorization.

74081225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102220 (or 102215 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 74081225 is about 8607.0450794683. The cubic root of 74081225 is about 419.9871972666.

The spelling of 74081225 in words is "seventy-four million, eighty-one thousand, two hundred twenty-five".