102115613 has 4 divisors (see below), whose sum is σ = 102219648. Its totient is φ = 102011580.

The previous prime is 102115603. The next prime is 102115687. The reversal of 102115613 is 316511201.

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 102115613 - 2¹² = 102111517 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 (102115603) 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, 50531 + ... + 52512.

It is an arithmetic number, because the mean of its divisors is an integer number (25554912).

Almost surely, 2^102115613 is an apocalyptic number.

It is an amenable number.

102115613 is a deficient number, since it is larger than the sum of its proper divisors (104035).

102115613 is an equidigital number, since it uses as much as digits as its factorization.

102115613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104034.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 102115613 is about 10105.2270137786. The cubic root of 102115613 is about 467.4093362270.

Adding to 102115613 its reverse (316511201), we get a palindrome (418626814).

The spelling of 102115613 in words is "one hundred two million, one hundred fifteen thousand, six hundred thirteen".