162312631225 has 12 divisors (see below), whose sum is σ = 201347577340. Its totient is φ = 129798547200.

The previous prime is 162312631223. The next prime is 162312631249. The reversal of 162312631225 is 522136213261.

It can be written as a sum of positive squares in 6 ways, for example, as 94190065216 + 68122566009 = 306904^2 + 261003^2 .

It is not a de Polignac number, because 162312631225 - 2¹ = 162312631223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162312631223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224660 + ... + 1350709.

Almost surely, 2^162312631225 is an apocalyptic number.

It is an amenable number.

162312631225 is a deficient number, since it is larger than the sum of its proper divisors (39034946115).

162312631225 is a wasteful number, since it uses less digits than its factorization.

162312631225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577900 (or 2577895 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

Adding to 162312631225 its reverse (522136213261), we get a palindrome (684448844486).

The spelling of 162312631225 in words is "one hundred sixty-two billion, three hundred twelve million, six hundred thirty-one thousand, two hundred twenty-five".