102020315 has 16 divisors (see below), whose sum is σ = 132388992. Its totient is φ = 75177984.

The previous prime is 102020299. The next prime is 102020323. The reversal of 102020315 is 513020201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102020315 - 2⁴ = 102020299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102020315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8774 + ... + 16763.

It is an arithmetic number, because the mean of its divisors is an integer number (8274312).

Almost surely, 2^102020315 is an apocalyptic number.

102020315 is a deficient number, since it is larger than the sum of its proper divisors (30368677).

102020315 is a wasteful number, since it uses less digits than its factorization.

102020315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25606.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 102020315 is about 10100.5106306563. The cubic root of 102020315 is about 467.2638898477.

Adding to 102020315 its reverse (513020201), we get a palindrome (615040516).

The spelling of 102020315 in words is "one hundred two million, twenty thousand, three hundred fifteen".