102124639 has 8 divisors (see below), whose sum is σ = 107639280. Its totient is φ = 96624000.

The previous prime is 102124609. The next prime is 102124651. The reversal of 102124639 is 936421201.

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 102124639 - 2¹³ = 102116447 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 (102124609) 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, 13689 + ... + 19789.

It is an arithmetic number, because the mean of its divisors is an integer number (13454910).

Almost surely, 2^102124639 is an apocalyptic number.

102124639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102124639 is a deficient number, since it is larger than the sum of its proper divisors (5514641).

102124639 is an equidigital number, since it uses as much as digits as its factorization.

102124639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7001.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 102124639 is about 10105.6736044660. The cubic root of 102124639 is about 467.4231072599.

The spelling of 102124639 in words is "one hundred two million, one hundred twenty-four thousand, six hundred thirty-nine".