378272101 has 2 divisors, whose sum is σ = 378272102. Its totient is φ = 378272100.

The previous prime is 378272093. The next prime is 378272107. The reversal of 378272101 is 101272873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216855076 + 161417025 = 14726^2 + 12705^2 .

It is a cyclic number.

It is not a de Polignac number, because 378272101 - 2³ = 378272093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378272107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189136050 + 189136051.

It is an arithmetic number, because the mean of its divisors is an integer number (189136051).

Almost surely, 2^378272101 is an apocalyptic number.

It is an amenable number.

378272101 is a deficient number, since it is larger than the sum of its proper divisors (1).

378272101 is an equidigital number, since it uses as much as digits as its factorization.

378272101 is an odious number, because the sum of its binary digits is odd.

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

The square root of 378272101 is about 19449.2185190048. The cubic root of 378272101 is about 723.2161302644.

The spelling of 378272101 in words is "three hundred seventy-eight million, two hundred seventy-two thousand, one hundred one".