131206134 has 32 divisors (see below), whose sum is σ = 278784000. Its totient is φ = 41049504.

The previous prime is 131206129. The next prime is 131206139. The reversal of 131206134 is 431602131.

It is an interprime number because it is at equal distance from previous prime (131206129) and next prime (131206139).

It is a self number, because there is not a number n which added to its sum of digits gives 131206134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131206139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7147 + ... + 17705.

It is an arithmetic number, because the mean of its divisors is an integer number (8712000).

Almost surely, 2^131206134 is an apocalyptic number.

131206134 is an abundant number, since it is smaller than the sum of its proper divisors (147577866).

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

131206134 is a wasteful number, since it uses less digits than its factorization.

131206134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 131206134 is about 11454.5246082061. The cubic root of 131206134 is about 508.1415559178.

Adding to 131206134 its reverse (431602131), we get a palindrome (562808265).

The spelling of 131206134 in words is "one hundred thirty-one million, two hundred six thousand, one hundred thirty-four".