102047312 has 10 divisors (see below), whose sum is σ = 197716698. Its totient is φ = 51023648.

The previous prime is 102047303. The next prime is 102047321. The reversal of 102047312 is 213740201.

It is an interprime number because it is at equal distance from previous prime (102047303) and next prime (102047321).

It can be written as a sum of positive squares in only one way, i.e., 68823616 + 33223696 = 8296^2 + 5764^2 .

It is a congruent number.

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, 3188963 + ... + 3188994.

Almost surely, 2^102047312 is an apocalyptic number.

It is an amenable number.

102047312 is a deficient number, since it is larger than the sum of its proper divisors (95669386).

102047312 is an equidigital number, since it uses as much as digits as its factorization.

102047312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377965 (or 6377959 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 102047312 is about 10101.8469598386. The cubic root of 102047312 is about 467.3051025894.

Adding to 102047312 its reverse (213740201), we get a palindrome (315787513).

The spelling of 102047312 in words is "one hundred two million, forty-seven thousand, three hundred twelve".