131022534 has 8 divisors (see below), whose sum is σ = 262045080. Its totient is φ = 43674176.

The previous prime is 131022503. The next prime is 131022547. The reversal of 131022534 is 435220131.

It is a sphenic number, since it is the product of 3 distinct primes.

131022534 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131022534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10918539 + ... + 10918550.

It is an arithmetic number, because the mean of its divisors is an integer number (32755635).

Almost surely, 2^131022534 is an apocalyptic number.

131022534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131022534 is a wasteful number, since it uses less digits than its factorization.

131022534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21837094.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 131022534 is about 11446.5075022908. The cubic root of 131022534 is about 507.9044269126.

Adding to 131022534 its reverse (435220131), we get a palindrome (566242665).

The spelling of 131022534 in words is "one hundred thirty-one million, twenty-two thousand, five hundred thirty-four".