10431491 has 4 divisors (see below), whose sum is σ = 11921712. Its totient is φ = 8941272.

The previous prime is 10431479. The next prime is 10431497. The reversal of 10431491 is 19413401.

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

It is a cyclic number.

It is not a de Polignac number, because 10431491 - 2¹⁸ = 10169347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10431497) 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, 745100 + ... + 745113.

It is an arithmetic number, because the mean of its divisors is an integer number (2980428).

Almost surely, 2^10431491 is an apocalyptic number.

10431491 is a deficient number, since it is larger than the sum of its proper divisors (1490221).

10431491 is an equidigital number, since it uses as much as digits as its factorization.

10431491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490220.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 10431491 is about 3229.7818811802. The cubic root of 10431491 is about 218.4986690603.

Adding to 10431491 its reverse (19413401), we get a palindrome (29844892).

The spelling of 10431491 in words is "ten million, four hundred thirty-one thousand, four hundred ninety-one".