523132091 has 4 divisors (see below), whose sum is σ = 523437432. Its totient is φ = 522826752.

The previous prime is 523132087. The next prime is 523132133. The reversal of 523132091 is 190231325.

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

It is a cyclic number.

It is not a de Polignac number, because 523132091 - 2² = 523132087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523132091.

It is not an unprimeable number, because it can be changed into a prime (523132021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150086 + ... + 153531.

It is an arithmetic number, because the mean of its divisors is an integer number (130859358).

Almost surely, 2^523132091 is an apocalyptic number.

523132091 is a deficient number, since it is larger than the sum of its proper divisors (305341).

523132091 is a wasteful number, since it uses less digits than its factorization.

523132091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305340.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 523132091 is about 22872.0810378068. The cubic root of 523132091 is about 805.7564439059.

The spelling of 523132091 in words is "five hundred twenty-three million, one hundred thirty-two thousand, ninety-one".