74469149 has 2 divisors, whose sum is σ = 74469150. Its totient is φ = 74469148.

The previous prime is 74469119. The next prime is 74469179. The reversal of 74469149 is 94196447.

It is a balanced prime because it is at equal distance from previous prime (74469119) and next prime (74469179).

It can be written as a sum of positive squares in only one way, i.e., 72760900 + 1708249 = 8530^2 + 1307^2 .

It is an emirp because it is prime and its reverse (94196447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74469149 - 2¹⁶ = 74403613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74469119) 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 as a sum of consecutive naturals, namely, 37234574 + 37234575.

It is an arithmetic number, because the mean of its divisors is an integer number (37234575).

Almost surely, 2^74469149 is an apocalyptic number.

It is an amenable number.

74469149 is a deficient number, since it is larger than the sum of its proper divisors (1).

74469149 is an equidigital number, since it uses as much as digits as its factorization.

74469149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 74469149 is about 8629.5509153142. The cubic root of 74469149 is about 420.7190046278.

The spelling of 74469149 in words is "seventy-four million, four hundred sixty-nine thousand, one hundred forty-nine".