131421150 has 96 divisors (see below), whose sum is σ = 413902080. Its totient is φ = 30036960.

The previous prime is 131421109. The next prime is 131421197. The reversal of 131421150 is 51124131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2497 + ... + 16403.

It is an arithmetic number, because the mean of its divisors is an integer number (4311480).

Almost surely, 2^131421150 is an apocalyptic number.

131421150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131421150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206951040).

131421150 is an abundant number, since it is smaller than the sum of its proper divisors (282480930).

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

131421150 is a wasteful number, since it uses less digits than its factorization.

131421150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13935 (or 13924 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 131421150 is about 11463.9064022697. The cubic root of 131421150 is about 508.4189792687.

Adding to 131421150 its reverse (51124131), we get a palindrome (182545281).

The spelling of 131421150 in words is "one hundred thirty-one million, four hundred twenty-one thousand, one hundred fifty".