102641015 has 4 divisors (see below), whose sum is σ = 123169224. Its totient is φ = 82112808.

The previous prime is 102641009. The next prime is 102641047. The reversal of 102641015 is 510146201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102641015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10264097 + ... + 10264106.

It is an arithmetic number, because the mean of its divisors is an integer number (30792306).

Almost surely, 2^102641015 is an apocalyptic number.

102641015 is a deficient number, since it is larger than the sum of its proper divisors (20528209).

102641015 is an equidigital number, since it uses as much as digits as its factorization.

102641015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20528208.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 102641015 is about 10131.1902064861. The cubic root of 102641015 is about 468.2095985081.

Adding to 102641015 its reverse (510146201), we get a palindrome (612787216).

The spelling of 102641015 in words is "one hundred two million, six hundred forty-one thousand, fifteen".