102309273 has 12 divisors (see below), whose sum is σ = 161214768. Its totient is φ = 62005560.

The previous prime is 102309257. The next prime is 102309287. The reversal of 102309273 is 372903201.

It is not a de Polignac number, because 102309273 - 2⁴ = 102309257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102309293) 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 11 ways as a sum of consecutive naturals, for example, 516615 + ... + 516812.

It is an arithmetic number, because the mean of its divisors is an integer number (13434564).

Almost surely, 2^102309273 is an apocalyptic number.

It is an amenable number.

102309273 is a deficient number, since it is larger than the sum of its proper divisors (58905495).

102309273 is a wasteful number, since it uses less digits than its factorization.

102309273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033444 (or 1033441 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 102309273 is about 10114.8046446780. The cubic root of 102309273 is about 467.7046267887.

It can be divided in two parts, 1023092 and 73, that added together give a triangular number (1023165 = T₁₄₃₀).

The spelling of 102309273 in words is "one hundred two million, three hundred nine thousand, two hundred seventy-three".