131214816 has 240 divisors, whose sum is σ = 421521408. Its totient is φ = 39916800.

The previous prime is 131214773. The next prime is 131214833. The reversal of 131214816 is 618412131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 131214816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1848061 + ... + 1848131.

Almost surely, 2^131214816 is an apocalyptic number.

131214816 is a gapful number since it is divisible by the number (16) 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 131214816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210760704).

131214816 is an abundant number, since it is smaller than the sum of its proper divisors (290306592).

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

131214816 is a wasteful number, since it uses less digits than its factorization.

131214816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 130 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 131214816 is about 11454.9035788172. The cubic root of 131214816 is about 508.1527636959.

Adding to 131214816 its reverse (618412131), we get a palindrome (749626947).

The spelling of 131214816 in words is "one hundred thirty-one million, two hundred fourteen thousand, eight hundred sixteen".