102952909 has 4 divisors (see below), whose sum is σ = 103199040. Its totient is φ = 102706780.

The previous prime is 102952903. The next prime is 102952961. The reversal of 102952909 is 909259201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 909259201 = 37 ⋅24574573.

It is a cyclic number.

It is not a de Polignac number, because 102952909 - 2⁵ = 102952877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102952903) 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, 122437 + ... + 123274.

It is an arithmetic number, because the mean of its divisors is an integer number (25799760).

Almost surely, 2^102952909 is an apocalyptic number.

It is an amenable number.

102952909 is a deficient number, since it is larger than the sum of its proper divisors (246131).

102952909 is an equidigital number, since it uses as much as digits as its factorization.

102952909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246130.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 102952909 is about 10146.5712928063. The cubic root of 102952909 is about 468.6833665521.

The spelling of 102952909 in words is "one hundred two million, nine hundred fifty-two thousand, nine hundred nine".