162648631 has 6 divisors (see below), whose sum is σ = 165362496. Its totient is φ = 159978600.

The previous prime is 162648613. The next prime is 162648643. The reversal of 162648631 is 136846261.

It is a happy number.

It is not a de Polignac number, because 162648631 - 2¹⁷ = 162517559 is a prime.

It is a super-2 number, since 2×162648631² = 52909154332348322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162648671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18135 + ... + 25576.

It is an arithmetic number, because the mean of its divisors is an integer number (27560416).

Almost surely, 2^162648631 is an apocalyptic number.

162648631 is a deficient number, since it is larger than the sum of its proper divisors (2713865).

162648631 is an frugal number, since it uses more digits than its factorization.

162648631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43833 (or 43772 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 162648631 is about 12753.3772389905. The cubic root of 162648631 is about 545.8627650013.

The spelling of 162648631 in words is "one hundred sixty-two million, six hundred forty-eight thousand, six hundred thirty-one".