162540870 has 64 divisors (see below), whose sum is σ = 400308480. Its totient is φ = 42224000.

The previous prime is 162540869. The next prime is 162540881. The reversal of 162540870 is 78045261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231520 + ... + 232220.

It is an arithmetic number, because the mean of its divisors is an integer number (6254820).

Almost surely, 2^162540870 is an apocalyptic number.

162540870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 162540870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200154240).

162540870 is an abundant number, since it is smaller than the sum of its proper divisors (237767610).

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

162540870 is a wasteful number, since it uses less digits than its factorization.

162540870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 162540870 is about 12749.1517364882. The cubic root of 162540870 is about 545.7421866466.

The spelling of 162540870 in words is "one hundred sixty-two million, five hundred forty thousand, eight hundred seventy".