162147090 has 64 divisors (see below), whose sum is σ = 448747776. Its totient is φ = 36728832.

The previous prime is 162147067. The next prime is 162147103. The reversal of 162147090 is 90741261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 20314 + ... + 27146.

It is an arithmetic number, because the mean of its divisors is an integer number (7011684).

Almost surely, 2^162147090 is an apocalyptic number.

162147090 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 162147090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224373888).

162147090 is an abundant number, since it is smaller than the sum of its proper divisors (286600686).

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

162147090 is a wasteful number, since it uses less digits than its factorization.

162147090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 162147090 is about 12733.6989912594. The cubic root of 162147090 is about 545.3011157603.

The spelling of 162147090 in words is "one hundred sixty-two million, one hundred forty-seven thousand, ninety".