102921193 has 16 divisors (see below), whose sum is σ = 108299520. Its totient is φ = 97718400.

The previous prime is 102921187. The next prime is 102921199. The reversal of 102921193 is 391129201.

It is an interprime number because it is at equal distance from previous prime (102921187) and next prime (102921199).

It is a cyclic number.

It is not a de Polignac number, because 102921193 - 2¹³ = 102913001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102921199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379648 + ... + 379918.

It is an arithmetic number, because the mean of its divisors is an integer number (6768720).

Almost surely, 2^102921193 is an apocalyptic number.

It is an amenable number.

102921193 is a deficient number, since it is larger than the sum of its proper divisors (5378327).

102921193 is a wasteful number, since it uses less digits than its factorization.

102921193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 102921193 is about 10145.0082799375. The cubic root of 102921193 is about 468.6352335805.

It can be divided in two parts, 1029 and 21193, that added together give a palindrome (22222).

The spelling of 102921193 in words is "one hundred two million, nine hundred twenty-one thousand, one hundred ninety-three".