134443531 has 8 divisors (see below), whose sum is σ = 143735904. Its totient is φ = 125304960.

The previous prime is 134443523. The next prime is 134443553. The reversal of 134443531 is 135344431.

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

It is not a de Polignac number, because 134443531 - 2³ = 134443523 is a prime.

It is a super-2 number, since 2×134443531² = 36150126055495922, which contains 22 as substring.

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 134443531.

It is not an unprimeable number, because it can be changed into a prime (134443511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36640 + ... + 40141.

It is an arithmetic number, because the mean of its divisors is an integer number (17966988).

Almost surely, 2^134443531 is an apocalyptic number.

134443531 is a deficient number, since it is larger than the sum of its proper divisors (9292373).

134443531 is a wasteful number, since it uses less digits than its factorization.

134443531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76901.

The product of its digits is 8640, while the sum is 28.

The square root of 134443531 is about 11594.9786976950. The cubic root of 134443531 is about 512.2869624973.

Adding to 134443531 its reverse (135344431), we get a palindrome (269787962).

The spelling of 134443531 in words is "one hundred thirty-four million, four hundred forty-three thousand, five hundred thirty-one".