102431647 has 8 divisors (see below), whose sum is σ = 108595296. Its totient is φ = 96283392.

The previous prime is 102431639. The next prime is 102431671. The reversal of 102431647 is 746134201.

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

It is a cyclic number.

It is not a de Polignac number, because 102431647 - 2³ = 102431639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102431447) 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, 11683 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (13574412).

Almost surely, 2^102431647 is an apocalyptic number.

102431647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

102431647 is a deficient number, since it is larger than the sum of its proper divisors (6163649).

102431647 is an equidigital number, since it uses as much as digits as its factorization.

102431647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7697.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 102431647 is about 10120.8520886336. The cubic root of 102431647 is about 467.8910291860.

Adding to 102431647 its reverse (746134201), we get a palindrome (848565848).

The spelling of 102431647 in words is "one hundred two million, four hundred thirty-one thousand, six hundred forty-seven".