162454945249 has 3 divisors (see below), whose sum is σ = 162455348307. Its totient is φ = 162454542192.

The previous prime is 162454945181. The next prime is 162454945253. The reversal of 162454945249 is 942549454261.

The square root of 162454945249 is 403057.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 942549454261 = 59 ⋅15975414479.

It can be written as a sum of positive squares in only one way, i.e., 77871693025 + 84583252224 = 279055^2 + 290832^2 .

It is not a de Polignac number, because 162454945249 - 2⁹ = 162454944737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162454945249.

It is not an unprimeable number, because it can be changed into a prime (162454945349) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 201529 + ... + 604585.

It is an arithmetic number, because the mean of its divisors is an integer number (54151782769).

Almost surely, 2^162454945249 is an apocalyptic number.

162454945249 is the 403057-th square number.

162454945249 is the 201529-th centered octagonal number.

It is an amenable number.

162454945249 is a deficient number, since it is larger than the sum of its proper divisors (403058).

162454945249 is an frugal number, since it uses more digits than its factorization.

162454945249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806114 (or 403057 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 55.

The spelling of 162454945249 in words is "one hundred sixty-two billion, four hundred fifty-four million, nine hundred forty-five thousand, two hundred forty-nine".