2130431 has 4 divisors (see below), whose sum is σ = 2166600. Its totient is φ = 2094264.

The previous prime is 2130391. The next prime is 2130437. The reversal of 2130431 is 1340312.

2130431 = T₅₈ + T₅₉ + ... + T₂₃₄.

2130431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2130431 - 2⁶ = 2130367 is a prime.

It is a super-2 number, since 2×2130431² = 9077472491522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17996 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (541650).

2^2130431 is an apocalyptic number.

2130431 is a deficient number, since it is larger than the sum of its proper divisors (36169).

2130431 is an equidigital number, since it uses as much as digits as its factorization.

2130431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36168.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2130431 is about 1459.5996026308. The cubic root of 2130431 is about 128.6735128695.

Adding to 2130431 its reverse (1340312), we get a palindrome (3470743).

The spelling of 2130431 in words is "two million, one hundred thirty thousand, four hundred thirty-one".