102114978 has 32 divisors (see below), whose sum is σ = 233760384. Its totient is φ = 29131392.

The previous prime is 102114977. The next prime is 102114979. The reversal of 102114978 is 879411201.

It is an interprime number because it is at equal distance from previous prime (102114977) and next prime (102114979).

It is not an unprimeable number, because it can be changed into a prime (102114977) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 34576 + ... + 37412.

It is an arithmetic number, because the mean of its divisors is an integer number (7305012).

Almost surely, 2^102114978 is an apocalyptic number.

102114978 is an abundant number, since it is smaller than the sum of its proper divisors (131645406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102114978 is a wasteful number, since it uses less digits than its factorization.

102114978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 102114978 is about 10105.1955943465. The cubic root of 102114978 is about 467.4083673724.

The spelling of 102114978 in words is "one hundred two million, one hundred fourteen thousand, nine hundred seventy-eight".