131701812 has 24 divisors (see below), whose sum is σ = 335241312. Its totient is φ = 39909600.

The previous prime is 131701811. The next prime is 131701813. The reversal of 131701812 is 218107131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131701811) and next prime (131701813).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131701811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498739 + ... + 499002.

It is an arithmetic number, because the mean of its divisors is an integer number (13968388).

Almost surely, 2^131701812 is an apocalyptic number.

131701812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131701812 is an abundant number, since it is smaller than the sum of its proper divisors (203539500).

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

131701812 is a wasteful number, since it uses less digits than its factorization.

131701812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997759 (or 997757 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 131701812 is about 11476.1409890259. The cubic root of 131701812 is about 508.7806471566.

Adding to 131701812 its reverse (218107131), we get a palindrome (349808943).

The spelling of 131701812 in words is "one hundred thirty-one million, seven hundred one thousand, eight hundred twelve".