126162045389 has 2 divisors, whose sum is σ = 126162045390. Its totient is φ = 126162045388.

The previous prime is 126162045377. The next prime is 126162045391. The reversal of 126162045389 is 983540261621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115288769764 + 10873275625 = 339542^2 + 104275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126162045389 is a prime.

It is a super-2 number, since 2×126162045389² (a number of 23 digits) contains 22 as substring.

Together with 126162045391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126162045689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63081022694 + 63081022695.

It is an arithmetic number, because the mean of its divisors is an integer number (63081022695).

Almost surely, 2^126162045389 is an apocalyptic number.

It is an amenable number.

126162045389 is a deficient number, since it is larger than the sum of its proper divisors (1).

126162045389 is an equidigital number, since it uses as much as digits as its factorization.

126162045389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 126162045389 in words is "one hundred twenty-six billion, one hundred sixty-two million, forty-five thousand, three hundred eighty-nine".