74401031 has 2 divisors, whose sum is σ = 74401032. Its totient is φ = 74401030.

The previous prime is 74401003. The next prime is 74401073. The reversal of 74401031 is 13010447.

It is a weak prime.

It is an emirp because it is prime and its reverse (13010447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74401031 - 2¹⁴ = 74384647 is a prime.

It is a super-3 number, since 3×74401031³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 74400994 and 74401012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74401081) 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, 37200515 + 37200516.

It is an arithmetic number, because the mean of its divisors is an integer number (37200516).

Almost surely, 2^74401031 is an apocalyptic number.

74401031 is a deficient number, since it is larger than the sum of its proper divisors (1).

74401031 is an equidigital number, since it uses as much as digits as its factorization.

74401031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 74401031 is about 8625.6032252823. The cubic root of 74401031 is about 420.5906862566.

Adding to 74401031 its reverse (13010447), we get a palindrome (87411478).

The spelling of 74401031 in words is "seventy-four million, four hundred one thousand, thirty-one".