102015213 has 4 divisors (see below), whose sum is σ = 136020288. Its totient is φ = 68010140.

The previous prime is 102015211. The next prime is 102015223. The reversal of 102015213 is 312510201.

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 102015213 - 2¹ = 102015211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102015192 and 102015201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102015211) 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, 17002533 + ... + 17002538.

It is an arithmetic number, because the mean of its divisors is an integer number (34005072).

Almost surely, 2^102015213 is an apocalyptic number.

It is an amenable number.

102015213 is a deficient number, since it is larger than the sum of its proper divisors (34005075).

102015213 is an equidigital number, since it uses as much as digits as its factorization.

102015213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34005074.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 102015213 is about 10100.2580660100. The cubic root of 102015213 is about 467.2561004837.

Adding to 102015213 its reverse (312510201), we get a palindrome (414525414).

The spelling of 102015213 in words is "one hundred two million, fifteen thousand, two hundred thirteen".