102273745 has 8 divisors (see below), whose sum is σ = 140261184. Its totient is φ = 70130544.

The previous prime is 102273733. The next prime is 102273763. The reversal of 102273745 is 547372201.

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 102273745 - 2⁹ = 102273233 is a prime.

It is an unprimeable number.

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, 1461019 + ... + 1461088.

It is an arithmetic number, because the mean of its divisors is an integer number (17532648).

Almost surely, 2^102273745 is an apocalyptic number.

It is an amenable number.

102273745 is a deficient number, since it is larger than the sum of its proper divisors (37987439).

102273745 is an equidigital number, since it uses as much as digits as its factorization.

102273745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922119.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 102273745 is about 10113.0482546065. The cubic root of 102273745 is about 467.6504820265.

The spelling of 102273745 in words is "one hundred two million, two hundred seventy-three thousand, seven hundred forty-five".