102739990 has 8 divisors (see below), whose sum is σ = 184932000. Its totient is φ = 41095992.

The previous prime is 102739969. The next prime is 102739997. The reversal of 102739990 is 99937201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102739997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5136990 + ... + 5137009.

It is an arithmetic number, because the mean of its divisors is an integer number (23116500).

Almost surely, 2^102739990 is an apocalyptic number.

102739990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102739990 is a deficient number, since it is larger than the sum of its proper divisors (82192010).

102739990 is a wasteful number, since it uses less digits than its factorization.

102739990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274006.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 102739990 is about 10136.0736974432. The cubic root of 102739990 is about 468.3600457008.

The spelling of 102739990 in words is "one hundred two million, seven hundred thirty-nine thousand, nine hundred ninety".