Search a number
-
+
141778201 is a prime number
BaseRepresentation
bin10000111001101…
…01110100011001
3100212210002010111
420130311310121
5242243400301
622022444321
73341044345
oct1034656431
9325702114
10141778201
1173037074
123b5936a1
13234b0836
1414b88625
15c6a8551
hex8735d19

141778201 has 2 divisors, whose sum is σ = 141778202. Its totient is φ = 141778200.

The previous prime is 141778199. The next prime is 141778237. The reversal of 141778201 is 102877141.

141778201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141633801 + 144400 = 11901^2 + 380^2 .

It is an emirp because it is prime and its reverse (102877141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141778201 - 21 = 141778199 is a prime.

Together with 141778199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (141778261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70889100 + 70889101.

It is an arithmetic number, because the mean of its divisors is an integer number (70889101).

Almost surely, 2141778201 is an apocalyptic number.

It is an amenable number.

141778201 is a deficient number, since it is larger than the sum of its proper divisors (1).

141778201 is an equidigital number, since it uses as much as digits as its factorization.

141778201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 141778201 is about 11907.0651715694. The cubic root of 141778201 is about 521.4385720160.

The spelling of 141778201 in words is "one hundred forty-one million, seven hundred seventy-eight thousand, two hundred one".