131434433 has 8 divisors (see below), whose sum is σ = 143337600. Its totient is φ = 119787408.

The previous prime is 131434421. The next prime is 131434441. The reversal of 131434433 is 334434131.

It is a happy number.

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

It is not a de Polignac number, because 131434433 - 2²² = 127240129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131434453) 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, 62963 + ... + 65016.

It is an arithmetic number, because the mean of its divisors is an integer number (17917200).

Almost surely, 2^131434433 is an apocalyptic number.

131434433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131434433 is a deficient number, since it is larger than the sum of its proper divisors (11903167).

131434433 is a wasteful number, since it uses less digits than its factorization.

131434433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128071.

The product of its digits is 5184, while the sum is 26.

The square root of 131434433 is about 11464.4857276722. The cubic root of 131434433 is about 508.4361076679.

Adding to 131434433 its reverse (334434131), we get a palindrome (465868564).

It can be divided in two parts, 13143 and 4433, that added together give a cube (17576 = 26³).

The spelling of 131434433 in words is "one hundred thirty-one million, four hundred thirty-four thousand, four hundred thirty-three".