162148731 has 8 divisors (see below), whose sum is σ = 220798464. Its totient is φ = 105799080.

The previous prime is 162148709. The next prime is 162148741. The reversal of 162148731 is 137841261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162148731 - 2¹¹ = 162146683 is a prime.

It is a super-2 number, since 2×162148731² = 52584421929820722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 162148692 and 162148701.

It is not an unprimeable number, because it can be changed into a prime (162148741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574855 + ... + 575136.

It is an arithmetic number, because the mean of its divisors is an integer number (27599808).

Almost surely, 2^162148731 is an apocalyptic number.

162148731 is a deficient number, since it is larger than the sum of its proper divisors (58649733).

162148731 is a wasteful number, since it uses less digits than its factorization.

162148731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150041.

The product of its digits is 8064, while the sum is 33.

The square root of 162148731 is about 12733.7634264188. The cubic root of 162148731 is about 545.3029553166.

Adding to 162148731 its reverse (137841261), we get a palindrome (299989992).

The spelling of 162148731 in words is "one hundred sixty-two million, one hundred forty-eight thousand, seven hundred thirty-one".