102344257 has 8 divisors (see below), whose sum is σ = 107556416. Its totient is φ = 97260912.

The previous prime is 102344251. The next prime is 102344261. The reversal of 102344257 is 752443201.

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 102344257 - 2¹⁹ = 101819969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102344251) 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 7 ways as a sum of consecutive naturals, for example, 30573 + ... + 33754.

It is an arithmetic number, because the mean of its divisors is an integer number (13444552).

Almost surely, 2^102344257 is an apocalyptic number.

It is an amenable number.

102344257 is a deficient number, since it is larger than the sum of its proper divisors (5212159).

102344257 is an equidigital number, since it uses as much as digits as its factorization.

102344257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64407.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 102344257 is about 10116.5338431698. The cubic root of 102344257 is about 467.7579302465.

Adding to 102344257 its reverse (752443201), we get a palindrome (854787458).

The spelling of 102344257 in words is "one hundred two million, three hundred forty-four thousand, two hundred fifty-seven".