102156196 has 12 divisors (see below), whose sum is σ = 189289548. Its totient is φ = 48073472.

The previous prime is 102156193. The next prime is 102156211. The reversal of 102156196 is 691651201.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 60372900 = 6464^2 + 7770^2 .

It is not an unprimeable number, because it can be changed into a prime (102156193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751081 + ... + 751216.

It is an arithmetic number, because the mean of its divisors is an integer number (15774129).

Almost surely, 2^102156196 is an apocalyptic number.

It is an amenable number.

102156196 is a deficient number, since it is larger than the sum of its proper divisors (87133352).

102156196 is a wasteful number, since it uses less digits than its factorization.

102156196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502318 (or 1502316 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 102156196 is about 10107.2348345133. The cubic root of 102156196 is about 467.4712476240.

The spelling of 102156196 in words is "one hundred two million, one hundred fifty-six thousand, one hundred ninety-six".