10217431 has 6 divisors (see below), whose sum is σ = 11885640. Its totient is φ = 8757756.

The previous prime is 10217423. The next prime is 10217437. The reversal of 10217431 is 13471201.

It is not a de Polignac number, because 10217431 - 2³ = 10217423 is a prime.

It is a super-2 number, since 2×10217431² = 208791792479522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10217399 and 10217408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10217437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104211 + ... + 104308.

It is an arithmetic number, because the mean of its divisors is an integer number (1980940).

Almost surely, 2^10217431 is an apocalyptic number.

10217431 is a deficient number, since it is larger than the sum of its proper divisors (1668209).

10217431 is an equidigital number, since it uses as much as digits as its factorization.

10217431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208533 (or 208526 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 10217431 is about 3196.4716485525. The cubic root of 10217431 is about 216.9937563240.

Adding to 10217431 its reverse (13471201), we get a palindrome (23688632).

It can be divided in two parts, 10217 and 431, that added together give a cube (10648 = 22³).

The spelling of 10217431 in words is "ten million, two hundred seventeen thousand, four hundred thirty-one".