2131433 has 4 divisors (see below), whose sum is σ = 2224128. Its totient is φ = 2038740.

The previous prime is 2131429. The next prime is 2131447. The reversal of 2131433 is 3341312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131433 - 2² = 2131429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131463) 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, 46313 + ... + 46358.

It is an arithmetic number, because the mean of its divisors is an integer number (556032).

2^2131433 is an apocalyptic number.

2131433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2131433 is a deficient number, since it is larger than the sum of its proper divisors (92695).

2131433 is an equidigital number, since it uses as much as digits as its factorization.

2131433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92694.

The product of its digits is 216, while the sum is 17.

The square root of 2131433 is about 1459.9428070990. The cubic root of 2131433 is about 128.6936825991.

Adding to 2131433 its reverse (3341312), we get a palindrome (5472745).

The spelling of 2131433 in words is "two million, one hundred thirty-one thousand, four hundred thirty-three".