100378147 has 2 divisors, whose sum is σ = 100378148. Its totient is φ = 100378146.

The previous prime is 100378079. The next prime is 100378207. The reversal of 100378147 is 741873001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100378147 - 2¹¹ = 100376099 is a prime.

It is not a weakly prime, because it can be changed into another prime (100378247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50189073 + 50189074.

It is an arithmetic number, because the mean of its divisors is an integer number (50189074).

Almost surely, 2^100378147 is an apocalyptic number.

100378147 is a deficient number, since it is larger than the sum of its proper divisors (1).

100378147 is an equidigital number, since it uses as much as digits as its factorization.

100378147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 100378147 is about 10018.8895093219. The cubic root of 100378147 is about 464.7432150657.

The spelling of 100378147 in words is "one hundred million, three hundred seventy-eight thousand, one hundred forty-seven".