102403245 has 32 divisors (see below), whose sum is σ = 195397632. Its totient is φ = 44776512.

The previous prime is 102403241. The next prime is 102403247. The reversal of 102403245 is 542304201.

It is not a de Polignac number, because 102403245 - 2² = 102403241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102403241) 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 31 ways as a sum of consecutive naturals, for example, 18787 + ... + 23616.

It is an arithmetic number, because the mean of its divisors is an integer number (6106176).

Almost surely, 2^102403245 is an apocalyptic number.

102403245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102403245 is a deficient number, since it is larger than the sum of its proper divisors (92994387).

102403245 is a wasteful number, since it uses less digits than its factorization.

102403245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42441.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 102403245 is about 10119.4488486281. The cubic root of 102403245 is about 467.8477799564.

Adding to 102403245 its reverse (542304201), we get a palindrome (644707446).

The spelling of 102403245 in words is "one hundred two million, four hundred three thousand, two hundred forty-five".