74316551 has 2 divisors, whose sum is σ = 74316552. Its totient is φ = 74316550.

The previous prime is 74316533. The next prime is 74316587. The reversal of 74316551 is 15561347.

It is a weak prime.

It is an emirp because it is prime and its reverse (15561347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74316551 - 2²⁶ = 7207687 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74316511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37158275 + 37158276.

It is an arithmetic number, because the mean of its divisors is an integer number (37158276).

Almost surely, 2^74316551 is an apocalyptic number.

74316551 is a deficient number, since it is larger than the sum of its proper divisors (1).

74316551 is an equidigital number, since it uses as much as digits as its factorization.

74316551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 32.

The square root of 74316551 is about 8620.7047855729. The cubic root of 74316551 is about 420.4314368596.

Adding to 74316551 its reverse (15561347), we get a palindrome (89877898).

The spelling of 74316551 in words is "seventy-four million, three hundred sixteen thousand, five hundred fifty-one".