978282101 has 2 divisors, whose sum is σ = 978282102. Its totient is φ = 978282100.

The previous prime is 978282049. The next prime is 978282113. The reversal of 978282101 is 101282879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 936421201 + 41860900 = 30601^2 + 6470^2 .

It is an emirp because it is prime and its reverse (101282879) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-978282101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978282301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489141050 + 489141051.

It is an arithmetic number, because the mean of its divisors is an integer number (489141051).

Almost surely, 2^978282101 is an apocalyptic number.

It is an amenable number.

978282101 is a deficient number, since it is larger than the sum of its proper divisors (1).

978282101 is an equidigital number, since it uses as much as digits as its factorization.

978282101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 978282101 is about 31277.5015146671. The cubic root of 978282101 is about 992.7076512480.

The spelling of 978282101 in words is "nine hundred seventy-eight million, two hundred eighty-two thousand, one hundred one".