523022172149 has 2 divisors, whose sum is σ = 523022172150. Its totient is φ = 523022172148.

The previous prime is 523022172121. The next prime is 523022172173. The reversal of 523022172149 is 941271220325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509096520100 + 13925652049 = 713510^2 + 118007^2 .

It is a cyclic number.

It is not a de Polignac number, because 523022172149 - 2¹⁶ = 523022106613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523022172199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261511086074 + 261511086075.

It is an arithmetic number, because the mean of its divisors is an integer number (261511086075).

Almost surely, 2^523022172149 is an apocalyptic number.

It is an amenable number.

523022172149 is a deficient number, since it is larger than the sum of its proper divisors (1).

523022172149 is an equidigital number, since it uses as much as digits as its factorization.

523022172149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 523022172149 in words is "five hundred twenty-three billion, twenty-two million, one hundred seventy-two thousand, one hundred forty-nine".