107148978 has 12 divisors (see below), whose sum is σ = 232156158. Its totient is φ = 35716320.

The previous prime is 107148971. The next prime is 107149027. The reversal of 107148978 is 879841701.

It can be written as a sum of positive squares in only one way, i.e., 72539289 + 34609689 = 8517^2 + 5883^2 .

It is a super-2 number, since 2×107148978² = 22961806972888968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (107148971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2976343 + ... + 2976378.

Almost surely, 2^107148978 is an apocalyptic number.

107148978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

107148978 is an abundant number, since it is smaller than the sum of its proper divisors (125007180).

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

107148978 is a wasteful number, since it uses less digits than its factorization.

107148978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952729 (or 5952726 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 107148978 is about 10351.2790514023. The cubic root of 107148978 is about 474.9661700745.

The spelling of 107148978 in words is "one hundred seven million, one hundred forty-eight thousand, nine hundred seventy-eight".