102201415 has 4 divisors (see below), whose sum is σ = 122641704. Its totient is φ = 81761128.

The previous prime is 102201391. The next prime is 102201461. The reversal of 102201415 is 514102201.

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

It is a cyclic number.

It is not a de Polignac number, because 102201415 - 2⁷ = 102201287 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, 10220137 + ... + 10220146.

It is an arithmetic number, because the mean of its divisors is an integer number (30660426).

Almost surely, 2^102201415 is an apocalyptic number.

102201415 is a deficient number, since it is larger than the sum of its proper divisors (20440289).

102201415 is an equidigital number, since it uses as much as digits as its factorization.

102201415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20440288.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 102201415 is about 10109.4715489980. The cubic root of 102201415 is about 467.5402121606.

Adding to 102201415 its reverse (514102201), we get a palindrome (616303616).

The spelling of 102201415 in words is "one hundred two million, two hundred one thousand, four hundred fifteen".