102747012 has 12 divisors (see below), whose sum is σ = 239743056. Its totient is φ = 34249000.

The previous prime is 102746977. The next prime is 102747013. The reversal of 102747012 is 210747201.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (102747013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4281114 + ... + 4281137.

It is an arithmetic number, because the mean of its divisors is an integer number (19978588).

Almost surely, 2^102747012 is an apocalyptic number.

102747012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102747012 is an abundant number, since it is smaller than the sum of its proper divisors (136996044).

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

102747012 is a wasteful number, since it uses less digits than its factorization.

102747012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8562258 (or 8562256 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 102747012 is about 10136.4200781144. The cubic root of 102747012 is about 468.3707158378.

The spelling of 102747012 in words is "one hundred two million, seven hundred forty-seven thousand, twelve".