74801245 has 4 divisors (see below), whose sum is σ = 89761500. Its totient is φ = 59840992.

The previous prime is 74801231. The next prime is 74801249. The reversal of 74801245 is 54210847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54210847 = 31 ⋅1748737.

It can be written as a sum of positive squares in 2 ways, for example, as 43731769 + 31069476 = 6613^2 + 5574^2 .

It is a cyclic number.

It is not a de Polignac number, because 74801245 - 2⁵ = 74801213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74801249) 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 3 ways as a sum of consecutive naturals, for example, 7480120 + ... + 7480129.

It is an arithmetic number, because the mean of its divisors is an integer number (22440375).

Almost surely, 2^74801245 is an apocalyptic number.

It is an amenable number.

74801245 is a deficient number, since it is larger than the sum of its proper divisors (14960255).

74801245 is a wasteful number, since it uses less digits than its factorization.

74801245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14960254.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 74801245 is about 8648.7713000171. The cubic root of 74801245 is about 421.3434776278.

The spelling of 74801245 in words is "seventy-four million, eight hundred one thousand, two hundred forty-five".