132121420 has 24 divisors (see below), whose sum is σ = 277681824. Its totient is φ = 52805376.

The previous prime is 132121391. The next prime is 132121427. The reversal of 132121420 is 24121231.

It is a junction number, because it is equal to n+sod(n) for n = 132121394 and 132121403.

It is not an unprimeable number, because it can be changed into a prime (132121427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35697 + ... + 39223.

It is an arithmetic number, because the mean of its divisors is an integer number (11570076).

Almost surely, 2^132121420 is an apocalyptic number.

132121420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132121420 is an abundant number, since it is smaller than the sum of its proper divisors (145560404).

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

132121420 is a wasteful number, since it uses less digits than its factorization.

132121420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409 (or 5407 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 132121420 is about 11494.4082057320. The cubic root of 132121420 is about 509.3204071367.

Adding to 132121420 its reverse (24121231), we get a palindrome (156242651).

The spelling of 132121420 in words is "one hundred thirty-two million, one hundred twenty-one thousand, four hundred twenty".