102145246 has 8 divisors (see below), whose sum is σ = 175106160. Its totient is φ = 43776528.

The previous prime is 102145243. The next prime is 102145247. The reversal of 102145246 is 642541201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102145246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102145243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3648031 + ... + 3648058.

It is an arithmetic number, because the mean of its divisors is an integer number (21888270).

Almost surely, 2^102145246 is an apocalyptic number.

102145246 is a deficient number, since it is larger than the sum of its proper divisors (72960914).

102145246 is an equidigital number, since it uses as much as digits as its factorization.

102145246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296098.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 102145246 is about 10106.6931288132. The cubic root of 102145246 is about 467.4545444666.

Adding to 102145246 its reverse (642541201), we get a palindrome (744686447).

The spelling of 102145246 in words is "one hundred two million, one hundred forty-five thousand, two hundred forty-six".