Search a number
-
+
1214231401 is a prime number
BaseRepresentation
bin100100001011111…
…1011001101101001
310010121210100100101
41020113323031221
54441320401101
6320253105401
742042540145
oct11027731551
93117710311
101214231401
11573447029
1229a788261
13164738026
14b7396225
15718ec401
hex485fb369

1214231401 has 2 divisors, whose sum is σ = 1214231402. Its totient is φ = 1214231400.

The previous prime is 1214231371. The next prime is 1214231453. The reversal of 1214231401 is 1041324121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 758451600 + 455779801 = 27540^2 + 21349^2 .

It is an emirp because it is prime and its reverse (1041324121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1214231401 - 29 = 1214230889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1214231101) 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, 607115700 + 607115701.

It is an arithmetic number, because the mean of its divisors is an integer number (607115701).

Almost surely, 21214231401 is an apocalyptic number.

It is an amenable number.

1214231401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214231401 is an equidigital number, since it uses as much as digits as its factorization.

1214231401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1214231401 is about 34845.8232934738. The cubic root of 1214231401 is about 1066.8429377417.

Adding to 1214231401 its reverse (1041324121), we get a palindrome (2255555522).

The spelling of 1214231401 in words is "one billion, two hundred fourteen million, two hundred thirty-one thousand, four hundred one".