74102137 has 2 divisors, whose sum is σ = 74102138. Its totient is φ = 74102136.

The previous prime is 74102131. The next prime is 74102143. The reversal of 74102137 is 73120147.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (74102131) and next prime (74102143).

It can be written as a sum of positive squares in only one way, i.e., 72097081 + 2005056 = 8491^2 + 1416^2 .

It is an emirp because it is prime and its reverse (73120147) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74102137 is a prime.

It is a super-2 number, since 2×74102137² = 10982253415933538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74102131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37051068 + 37051069.

It is an arithmetic number, because the mean of its divisors is an integer number (37051069).

Almost surely, 2^74102137 is an apocalyptic number.

It is an amenable number.

74102137 is a deficient number, since it is larger than the sum of its proper divisors (1).

74102137 is an equidigital number, since it uses as much as digits as its factorization.

74102137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 74102137 is about 8608.2598125289. The cubic root of 74102137 is about 420.0267122088.

The spelling of 74102137 in words is "seventy-four million, one hundred two thousand, one hundred thirty-seven".