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140133421 is a prime number
BaseRepresentation
bin10000101101001…
…00010000101101
3100202200111220201
420112210100231
5241333232141
621523313501
73321054151
oct1026442055
9322614821
10140133421
117211334a
123ab1b891
1323055cac
141487b061
15c481031
hex85a442d

140133421 has 2 divisors, whose sum is σ = 140133422. Its totient is φ = 140133420.

The previous prime is 140133419. The next prime is 140133463. The reversal of 140133421 is 124331041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130210921 + 9922500 = 11411^2 + 3150^2 .

It is a cyclic number.

It is not a de Polignac number, because 140133421 - 21 = 140133419 is a prime.

Together with 140133419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140137421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70066710 + 70066711.

It is an arithmetic number, because the mean of its divisors is an integer number (70066711).

Almost surely, 2140133421 is an apocalyptic number.

It is an amenable number.

140133421 is a deficient number, since it is larger than the sum of its proper divisors (1).

140133421 is an equidigital number, since it uses as much as digits as its factorization.

140133421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 140133421 is about 11837.7962898506. The cubic root of 140133421 is about 519.4143072791.

Adding to 140133421 its reverse (124331041), we get a palindrome (264464462).

The spelling of 140133421 in words is "one hundred forty million, one hundred thirty-three thousand, four hundred twenty-one".