74137361 has 2 divisors, whose sum is σ = 74137362. Its totient is φ = 74137360.

The previous prime is 74137321. The next prime is 74137363. The reversal of 74137361 is 16373147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68227600 + 5909761 = 8260^2 + 2431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74137361 is a prime.

Together with 74137363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74137363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37068680 + 37068681.

It is an arithmetic number, because the mean of its divisors is an integer number (37068681).

Almost surely, 2^74137361 is an apocalyptic number.

It is an amenable number.

74137361 is a deficient number, since it is larger than the sum of its proper divisors (1).

74137361 is an equidigital number, since it uses as much as digits as its factorization.

74137361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 32.

The square root of 74137361 is about 8610.3055114206. The cubic root of 74137361 is about 420.0932540473.

The spelling of 74137361 in words is "seventy-four million, one hundred thirty-seven thousand, three hundred sixty-one".