131765534 has 8 divisors (see below), whose sum is σ = 201853728. Its totient is φ = 64480960.

The previous prime is 131765519. The next prime is 131765537. The reversal of 131765534 is 435567131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131765494 and 131765503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131765537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700787 + ... + 700974.

It is an arithmetic number, because the mean of its divisors is an integer number (25231716).

Almost surely, 2^131765534 is an apocalyptic number.

131765534 is a deficient number, since it is larger than the sum of its proper divisors (70088194).

131765534 is a wasteful number, since it uses less digits than its factorization.

131765534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401810.

The product of its digits is 37800, while the sum is 35.

The square root of 131765534 is about 11478.9169349726. The cubic root of 131765534 is about 508.8626892905.

The spelling of 131765534 in words is "one hundred thirty-one million, seven hundred sixty-five thousand, five hundred thirty-four".