131147834 has 4 divisors (see below), whose sum is σ = 196721754. Its totient is φ = 65573916.

The previous prime is 131147833. The next prime is 131147837. The reversal of 131147834 is 438741131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 125507209 + 5640625 = 11203^2 + 2375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131147834.

It is not an unprimeable number, because it can be changed into a prime (131147833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32786957 + ... + 32786960.

Almost surely, 2^131147834 is an apocalyptic number.

131147834 is a deficient number, since it is larger than the sum of its proper divisors (65573920).

131147834 is an equidigital number, since it uses as much as digits as its factorization.

131147834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65573919.

The product of its digits is 8064, while the sum is 32.

The square root of 131147834 is about 11451.9794795485. The cubic root of 131147834 is about 508.0662824005.

Adding to 131147834 its reverse (438741131), we get a palindrome (569888965).

The spelling of 131147834 in words is "one hundred thirty-one million, one hundred forty-seven thousand, eight hundred thirty-four".