131474533 has 4 divisors (see below), whose sum is σ = 133275628. Its totient is φ = 129673440.

The previous prime is 131474531. The next prime is 131474537. The reversal of 131474533 is 335474131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109035364 + 22439169 = 10442^2 + 4737^2 .

It is a cyclic number.

It is not a de Polignac number, because 131474533 - 2¹ = 131474531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131474495 and 131474504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131474531) 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, 900438 + ... + 900583.

It is an arithmetic number, because the mean of its divisors is an integer number (33318907).

Almost surely, 2^131474533 is an apocalyptic number.

It is an amenable number.

131474533 is a deficient number, since it is larger than the sum of its proper divisors (1801095).

131474533 is an equidigital number, since it uses as much as digits as its factorization.

131474533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801094.

The product of its digits is 15120, while the sum is 31.

The square root of 131474533 is about 11466.2344734442. The cubic root of 131474533 is about 508.4878095301.

The spelling of 131474533 in words is "one hundred thirty-one million, four hundred seventy-four thousand, five hundred thirty-three".