162101100 has 72 divisors (see below), whose sum is σ = 536021248. Its totient is φ = 37051200.

The previous prime is 162101081. The next prime is 162101101. The reversal of 162101100 is 1101261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (162101101) 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, 36496 + ... + 40695.

Almost surely, 2^162101100 is an apocalyptic number.

162101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162101100 is an abundant number, since it is smaller than the sum of its proper divisors (373920148).

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

162101100 is a wasteful number, since it uses less digits than its factorization.

162101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77215 (or 77208 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 162101100 is about 12731.8930249983. The cubic root of 162101100 is about 545.2495560526.

Adding to 162101100 its reverse (1101261), we get a palindrome (163202361).

The spelling of 162101100 in words is "one hundred sixty-two million, one hundred one thousand, one hundred".