20945114137 has 2 divisors, whose sum is σ = 20945114138. Its totient is φ = 20945114136.

The previous prime is 20945114131. The next prime is 20945114143. The reversal of 20945114137 is 73141154902.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20945114131) and next prime (20945114143).

It can be written as a sum of positive squares in only one way, i.e., 15706104976 + 5239009161 = 125324^2 + 72381^2 .

It is a cyclic number.

It is not a de Polignac number, because 20945114137 - 2²³ = 20936725529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20945114096 and 20945114105.

It is not a weakly prime, because it can be changed into another prime (20945114131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10472557068 + 10472557069.

It is an arithmetic number, because the mean of its divisors is an integer number (10472557069).

Almost surely, 2^20945114137 is an apocalyptic number.

It is an amenable number.

20945114137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20945114137 is an equidigital number, since it uses as much as digits as its factorization.

20945114137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 20945114137 in words is "twenty billion, nine hundred forty-five million, one hundred fourteen thousand, one hundred thirty-seven".