162133900 has 72 divisors (see below), whose sum is σ = 370288800. Its totient is φ = 61501440.

The previous prime is 162133891. The next prime is 162133901. The reversal of 162133900 is 9331261.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (162133901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360876 + ... + 361324.

It is an arithmetic number, because the mean of its divisors is an integer number (5142900).

Almost surely, 2^162133900 is an apocalyptic number.

162133900 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 162133900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185144400).

162133900 is an abundant number, since it is smaller than the sum of its proper divisors (208154900).

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

162133900 is a wasteful number, since it uses less digits than its factorization.

162133900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 162133900 is about 12733.1810636620. The cubic root of 162133900 is about 545.2863293571.

The spelling of 162133900 in words is "one hundred sixty-two million, one hundred thirty-three thousand, nine hundred".