102106287447 has 16 divisors (see below), whose sum is σ = 139050542592. Its totient is φ = 66616699520.

The previous prime is 102106287431. The next prime is 102106287449. The reversal of 102106287447 is 744782601201.

It is a cyclic number.

It is not a de Polignac number, because 102106287447 - 2⁴ = 102106287431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102106287399 and 102106287408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102106287449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2076172 + ... + 2124782.

It is an arithmetic number, because the mean of its divisors is an integer number (8690658912).

Almost surely, 2^102106287447 is an apocalyptic number.

102106287447 is a deficient number, since it is larger than the sum of its proper divisors (36944255145).

102106287447 is a wasteful number, since it uses less digits than its factorization.

102106287447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63558.

The product of its (nonzero) digits is 150528, while the sum is 42.

Adding to 102106287447 its reverse (744782601201), we get a palindrome (846888888648).

The spelling of 102106287447 in words is "one hundred two billion, one hundred six million, two hundred eighty-seven thousand, four hundred forty-seven".