131899050 has 96 divisors (see below), whose sum is σ = 372476160. Its totient is φ = 34300800.

The previous prime is 131899049. The next prime is 131899051. The reversal of 131899050 is 50998131.

131899050 = T₁₇₆₄ + T₁₇₆₅ + ... + T₁₈₄₄.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131899049) and next prime (131899051).

It is a junction number, because it is equal to n+sod(n) for n = 131898996 and 131899014.

It is not an unprimeable number, because it can be changed into a prime (131899051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54159 + ... + 56541.

It is an arithmetic number, because the mean of its divisors is an integer number (3879960).

Almost surely, 2^131899050 is an apocalyptic number.

131899050 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 131899050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186238080).

131899050 is an abundant number, since it is smaller than the sum of its proper divisors (240577110).

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

131899050 is a wasteful number, since it uses less digits than its factorization.

131899050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445 (or 2434 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 131899050 is about 11484.7311679464. The cubic root of 131899050 is about 509.0345055303.

The spelling of 131899050 in words is "one hundred thirty-one million, eight hundred ninety-nine thousand, fifty".