162547540 has 48 divisors (see below), whose sum is σ = 362653200. Its totient is φ = 60987392.

The previous prime is 162547531. The next prime is 162547547. The reversal of 162547540 is 45745261.

It can be written as a sum of positive squares in 8 ways, for example, as 11847364 + 150700176 = 3442^2 + 12276^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 162547496 and 162547505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162547547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131646 + ... + 132874.

It is an arithmetic number, because the mean of its divisors is an integer number (7555275).

Almost surely, 2^162547540 is an apocalyptic number.

162547540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162547540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181326600).

162547540 is an abundant number, since it is smaller than the sum of its proper divisors (200105660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162547540 is a wasteful number, since it uses less digits than its factorization.

162547540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 162547540 is about 12749.4133198355. The cubic root of 162547540 is about 545.7496515396.

The spelling of 162547540 in words is "one hundred sixty-two million, five hundred forty-seven thousand, five hundred forty".