102939293 has 4 divisors (see below), whose sum is σ = 103208448. Its totient is φ = 102670140.

The previous prime is 102939289. The next prime is 102939307. The reversal of 102939293 is 392939201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102939293 - 2² = 102939289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102939203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134003 + ... + 134768.

It is an arithmetic number, because the mean of its divisors is an integer number (25802112).

Almost surely, 2^102939293 is an apocalyptic number.

It is an amenable number.

102939293 is a deficient number, since it is larger than the sum of its proper divisors (269155).

102939293 is an equidigital number, since it uses as much as digits as its factorization.

102939293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269154.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 102939293 is about 10145.9003050493. The cubic root of 102939293 is about 468.6627037911.

The spelling of 102939293 in words is "one hundred two million, nine hundred thirty-nine thousand, two hundred ninety-three".