102128273 has 8 divisors (see below), whose sum is σ = 110562816. Its totient is φ = 93776400.

The previous prime is 102128269. The next prime is 102128281. The reversal of 102128273 is 372821201.

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 102128273 - 2² = 102128269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102128573) 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, 18083 + ... + 23048.

It is an arithmetic number, because the mean of its divisors is an integer number (13820352).

Almost surely, 2^102128273 is an apocalyptic number.

102128273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

102128273 is a deficient number, since it is larger than the sum of its proper divisors (8434543).

102128273 is a wasteful number, since it uses less digits than its factorization.

102128273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41335.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 102128273 is about 10105.8534028552. The cubic root of 102128273 is about 467.4286514506.

Adding to 102128273 its reverse (372821201), we get a palindrome (474949474).

The spelling of 102128273 in words is "one hundred two million, one hundred twenty-eight thousand, two hundred seventy-three".