378741109 has 2 divisors, whose sum is σ = 378741110. Its totient is φ = 378741108.

The previous prime is 378741091. The next prime is 378741173. The reversal of 378741109 is 901147873.

Together with previous prime (378741091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374538609 + 4202500 = 19353^2 + 2050^2 .

It is a cyclic number.

It is not a de Polignac number, because 378741109 - 2¹³ = 378732917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378741409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189370554 + 189370555.

It is an arithmetic number, because the mean of its divisors is an integer number (189370555).

Almost surely, 2^378741109 is an apocalyptic number.

It is an amenable number.

378741109 is a deficient number, since it is larger than the sum of its proper divisors (1).

378741109 is an equidigital number, since it uses as much as digits as its factorization.

378741109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 378741109 is about 19461.2720293407. The cubic root of 378741109 is about 723.5149046660.

It can be divided in two parts, 37874 and 1109, that added together give a palindrome (38983).

The spelling of 378741109 in words is "three hundred seventy-eight million, seven hundred forty-one thousand, one hundred nine".