102440512 has 14 divisors (see below), whose sum is σ = 203280518. Its totient is φ = 51220224.

The previous prime is 102440501. The next prime is 102440537. The reversal of 102440512 is 215044201.

It can be written as a sum of positive squares in only one way, i.e., 84934656 + 17505856 = 9216^2 + 4184^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102440512.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 800253 + ... + 800380.

It is an arithmetic number, because the mean of its divisors is an integer number (14520037).

Almost surely, 2^102440512 is an apocalyptic number.

It is an amenable number.

102440512 is a deficient number, since it is larger than the sum of its proper divisors (100840006).

102440512 is an equidigital number, since it uses as much as digits as its factorization.

102440512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600645 (or 1600635 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 102440512 is about 10121.2900363541. The cubic root of 102440512 is about 467.9045267539.

Adding to 102440512 its reverse (215044201), we get a palindrome (317484713).

The spelling of 102440512 in words is "one hundred two million, four hundred forty thousand, five hundred twelve".