162131530 has 24 divisors (see below), whose sum is σ = 320781636. Its totient is φ = 58956480.

The previous prime is 162131527. The next prime is 162131539. The reversal of 162131530 is 35131261.

It is a happy number.

162131530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 160300921 + 1830609 = 12661^2 + 1353^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (162131539) 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, 65787 + ... + 68206.

Almost surely, 2^162131530 is an apocalyptic number.

162131530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162131530 is a deficient number, since it is larger than the sum of its proper divisors (158650106).

162131530 is a wasteful number, since it uses less digits than its factorization.

162131530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134022 (or 134011 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 162131530 is about 12733.0879993818. The cubic root of 162131530 is about 545.2836724279.

Adding to 162131530 its reverse (35131261), we get a palindrome (197262791).

The spelling of 162131530 in words is "one hundred sixty-two million, one hundred thirty-one thousand, five hundred thirty".