102291202 has 16 divisors (see below), whose sum is σ = 165727800. Its totient is φ = 47071872.

The previous prime is 102291197. The next prime is 102291209. The reversal of 102291202 is 202192201.

It can be written as a sum of positive squares in 4 ways, for example, as 70040161 + 32251041 = 8369^2 + 5679^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102291202.

It is not an unprimeable number, because it can be changed into a prime (102291209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3438 + ... + 14710.

Almost surely, 2^102291202 is an apocalyptic number.

102291202 is a deficient number, since it is larger than the sum of its proper divisors (63436598).

102291202 is a wasteful number, since it uses less digits than its factorization.

102291202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11637.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 102291202 is about 10113.9113106651. The cubic root of 102291202 is about 467.6770881055.

Subtracting 102291202 from its reverse (202192201), we obtain a palindrome (99900999).

The spelling of 102291202 in words is "one hundred two million, two hundred ninety-one thousand, two hundred two".