102146745 has 16 divisors (see below), whose sum is σ = 166913280. Its totient is φ = 53318784.

The previous prime is 102146713. The next prime is 102146771. The reversal of 102146745 is 547641201.

It is not a de Polignac number, because 102146745 - 2⁵ = 102146713 is a prime.

It is a super-3 number, since 3×102146745³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 71740 + ... + 73149.

It is an arithmetic number, because the mean of its divisors is an integer number (10432080).

Almost surely, 2^102146745 is an apocalyptic number.

102146745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102146745 is a deficient number, since it is larger than the sum of its proper divisors (64766535).

102146745 is a wasteful number, since it uses less digits than its factorization.

102146745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144944.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 102146745 is about 10106.7672873179. The cubic root of 102146745 is about 467.4568311155.

Adding to 102146745 its reverse (547641201), we get a palindrome (649787946).

The spelling of 102146745 in words is "one hundred two million, one hundred forty-six thousand, seven hundred forty-five".