102345249 has 8 divisors (see below), whose sum is σ = 137175552. Its totient is φ = 67872560.

The previous prime is 102345209. The next prime is 102345281. The reversal of 102345249 is 942543201.

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 102345249 - 2¹¹ = 102343201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102345209) 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, 88734 + ... + 89879.

It is an arithmetic number, because the mean of its divisors is an integer number (17146944).

Almost surely, 2^102345249 is an apocalyptic number.

It is an amenable number.

102345249 is a deficient number, since it is larger than the sum of its proper divisors (34830303).

102345249 is a wasteful number, since it uses less digits than its factorization.

102345249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178807.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 102345249 is about 10116.5828717013. The cubic root of 102345249 is about 467.7594415326.

The spelling of 102345249 in words is "one hundred two million, three hundred forty-five thousand, two hundred forty-nine".