161412420 has 48 divisors (see below), whose sum is σ = 486722880. Its totient is φ = 39732096.

The previous prime is 161412409. The next prime is 161412437. The reversal of 161412420 is 24214161.

It is a happy number.

161412420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102690 + ... + 104249.

It is an arithmetic number, because the mean of its divisors is an integer number (10140060).

Almost surely, 2^161412420 is an apocalyptic number.

161412420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161412420 is an abundant number, since it is smaller than the sum of its proper divisors (325310460).

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

161412420 is a wasteful number, since it uses less digits than its factorization.

161412420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206964 (or 206962 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 161412420 is about 12704.8187708444. The cubic root of 161412420 is about 544.4763030396.

Adding to 161412420 its reverse (24214161), we get a palindrome (185626581).

The spelling of 161412420 in words is "one hundred sixty-one million, four hundred twelve thousand, four hundred twenty".