23217746137 has 2 divisors, whose sum is σ = 23217746138. Its totient is φ = 23217746136.

The previous prime is 23217746113. The next prime is 23217746147. The reversal of 23217746137 is 73164771232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22420869696 + 796876441 = 149736^2 + 28229^2 .

It is a cyclic number.

It is not a de Polignac number, because 23217746137 - 2⁷ = 23217746009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23217746093 and 23217746102.

It is not a weakly prime, because it can be changed into another prime (23217746147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11608873068 + 11608873069.

It is an arithmetic number, because the mean of its divisors is an integer number (11608873069).

Almost surely, 2^23217746137 is an apocalyptic number.

It is an amenable number.

23217746137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23217746137 is an equidigital number, since it uses as much as digits as its factorization.

23217746137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 43.

The spelling of 23217746137 in words is "twenty-three billion, two hundred seventeen million, seven hundred forty-six thousand, one hundred thirty-seven".