978105102 has 32 divisors (see below), whose sum is σ = 2158077600. Its totient is φ = 293614080.

The previous prime is 978105077. The next prime is 978105103. The reversal of 978105102 is 201501879.

978105102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×978105102⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978105103) 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, 149727 + ... + 156122.

It is an arithmetic number, because the mean of its divisors is an integer number (67439925).

Almost surely, 2^978105102 is an apocalyptic number.

978105102 is an abundant number, since it is smaller than the sum of its proper divisors (1179972498).

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

978105102 is a wasteful number, since it uses less digits than its factorization.

978105102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305908.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 978105102 is about 31274.6718927633. The cubic root of 978105102 is about 992.6477779731.

The spelling of 978105102 in words is "nine hundred seventy-eight million, one hundred five thousand, one hundred two".