102363442 has 4 divisors (see below), whose sum is σ = 153545166. Its totient is φ = 51181720.

The previous prime is 102363433. The next prime is 102363449. The reversal of 102363442 is 244363201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94303521 + 8059921 = 9711^2 + 2839^2 .

It is not an unprimeable number, because it can be changed into a prime (102363449) 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 as a sum of consecutive naturals, namely, 25590859 + ... + 25590862.

Almost surely, 2^102363442 is an apocalyptic number.

102363442 is a deficient number, since it is larger than the sum of its proper divisors (51181724).

102363442 is an equidigital number, since it uses as much as digits as its factorization.

102363442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51181723.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 102363442 is about 10117.4819989956. The cubic root of 102363442 is about 467.7871563619.

The spelling of 102363442 in words is "one hundred two million, three hundred sixty-three thousand, four hundred forty-two".