102215132 has 12 divisors (see below), whose sum is σ = 183239616. Its totient is φ = 49860960.

The previous prime is 102215129. The next prime is 102215161. The reversal of 102215132 is 231512201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102215132.

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, 311468 + ... + 311795.

It is an arithmetic number, because the mean of its divisors is an integer number (15269968).

Almost surely, 2^102215132 is an apocalyptic number.

It is an amenable number.

102215132 is a deficient number, since it is larger than the sum of its proper divisors (81024484).

102215132 is a wasteful number, since it uses less digits than its factorization.

102215132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623308 (or 623306 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 102215132 is about 10110.1499494320. The cubic root of 102215132 is about 467.5611282513.

Adding to 102215132 its reverse (231512201), we get a palindrome (333727333).

The spelling of 102215132 in words is "one hundred two million, two hundred fifteen thousand, one hundred thirty-two".