90634231169 has 2 divisors, whose sum is σ = 90634231170. Its totient is φ = 90634231168.

The previous prime is 90634231139. The next prime is 90634231199. The reversal of 90634231169 is 96113243609.

It is a balanced prime because it is at equal distance from previous prime (90634231139) and next prime (90634231199).

It can be written as a sum of positive squares in only one way, i.e., 79919290000 + 10714941169 = 282700^2 + 103513^2 .

It is an emirp because it is prime and its reverse (96113243609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90634231169 - 2⁸ = 90634230913 is a prime.

It is a super-2 number, since 2×90634231169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90634231139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45317115584 + 45317115585.

It is an arithmetic number, because the mean of its divisors is an integer number (45317115585).

Almost surely, 2^90634231169 is an apocalyptic number.

It is an amenable number.

90634231169 is a deficient number, since it is larger than the sum of its proper divisors (1).

90634231169 is an equidigital number, since it uses as much as digits as its factorization.

90634231169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 90634231169 in words is "ninety billion, six hundred thirty-four million, two hundred thirty-one thousand, one hundred sixty-nine".