131434650 has 240 divisors, whose sum is σ = 408348864. Its totient is φ = 31173120.

The previous prime is 131434631. The next prime is 131434663. The reversal of 131434650 is 56434131.

131434650 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 3 + 4 + 650 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1583509 + ... + 1583591.

Almost surely, 2^131434650 is an apocalyptic number.

131434650 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 131434650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204174432).

131434650 is an abundant number, since it is smaller than the sum of its proper divisors (276914214).

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

131434650 is a wasteful number, since it uses less digits than its factorization.

131434650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 131434650 is about 11464.4951916777. The cubic root of 131434650 is about 508.4363874794.

Adding to 131434650 its reverse (56434131), we get a palindrome (187868781).

The spelling of 131434650 in words is "one hundred thirty-one million, four hundred thirty-four thousand, six hundred fifty".