131454220 has 12 divisors (see below), whose sum is σ = 276053904. Its totient is φ = 52581680.

The previous prime is 131454181. The next prime is 131454221. The reversal of 131454220 is 22454131.

It is a junction number, because it is equal to n+sod(n) for n = 131454191 and 131454200.

It is not an unprimeable number, because it can be changed into a prime (131454221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3286336 + ... + 3286375.

It is an arithmetic number, because the mean of its divisors is an integer number (23004492).

Almost surely, 2^131454220 is an apocalyptic number.

131454220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131454220 is an abundant number, since it is smaller than the sum of its proper divisors (144599684).

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

131454220 is a wasteful number, since it uses less digits than its factorization.

131454220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572720 (or 6572718 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 131454220 is about 11465.3486645631. The cubic root of 131454220 is about 508.4616208211.

The spelling of 131454220 in words is "one hundred thirty-one million, four hundred fifty-four thousand, two hundred twenty".