102215402 has 16 divisors (see below), whose sum is σ = 161611200. Its totient is φ = 48352320.

The previous prime is 102215389. The next prime is 102215417. The reversal of 102215402 is 204512201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37874 + ... + 40482.

It is an arithmetic number, because the mean of its divisors is an integer number (10100700).

Almost surely, 2^102215402 is an apocalyptic number.

102215402 is a deficient number, since it is larger than the sum of its proper divisors (59395798).

102215402 is a wasteful number, since it uses less digits than its factorization.

102215402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 102215402 is about 10110.1633023409. The cubic root of 102215402 is about 467.5615399365.

Adding to 102215402 its reverse (204512201), we get a palindrome (306727603).

The spelling of 102215402 in words is "one hundred two million, two hundred fifteen thousand, four hundred two".