102128283 has 24 divisors (see below), whose sum is σ = 153474048. Its totient is φ = 67866984.

The previous prime is 102128281. The next prime is 102128309. The reversal of 102128283 is 382821201.

It is not a de Polignac number, because 102128283 - 2¹ = 102128281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102128281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117910 + ... + 118772.

It is an arithmetic number, because the mean of its divisors is an integer number (6394752).

Almost surely, 2^102128283 is an apocalyptic number.

102128283 is a deficient number, since it is larger than the sum of its proper divisors (51345765).

102128283 is an frugal number, since it uses more digits than its factorization.

102128283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 102128283 is about 10105.8538976180. The cubic root of 102128283 is about 467.4286667068.

Adding to 102128283 its reverse (382821201), we get a palindrome (484949484).

The spelling of 102128283 in words is "one hundred two million, one hundred twenty-eight thousand, two hundred eighty-three".