74321000137 has 2 divisors, whose sum is σ = 74321000138. Its totient is φ = 74321000136.

The previous prime is 74321000119. The next prime is 74321000141. The reversal of 74321000137 is 73100012347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47445988041 + 26875012096 = 217821^2 + 163936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74321000137 is a prime.

It is a super-2 number, since 2×74321000137² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74321000107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37160500068 + 37160500069.

It is an arithmetic number, because the mean of its divisors is an integer number (37160500069).

Almost surely, 2^74321000137 is an apocalyptic number.

It is an amenable number.

74321000137 is a deficient number, since it is larger than the sum of its proper divisors (1).

74321000137 is an equidigital number, since it uses as much as digits as its factorization.

74321000137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The spelling of 74321000137 in words is "seventy-four billion, three hundred twenty-one million, one hundred thirty-seven", and thus it is an aban number.