140342101 has 2 divisors, whose sum is σ = 140342102. Its totient is φ = 140342100.

The previous prime is 140342099. The next prime is 140342119. The reversal of 140342101 is 101243041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108701476 + 31640625 = 10426^2 + 5625^2 .

It is a cyclic number.

It is not a de Polignac number, because 140342101 - 2¹ = 140342099 is a prime.

Together with 140342099, 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 (140342131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70171050 + 70171051.

It is an arithmetic number, because the mean of its divisors is an integer number (70171051).

Almost surely, 2^140342101 is an apocalyptic number.

It is an amenable number.

140342101 is a deficient number, since it is larger than the sum of its proper divisors (1).

140342101 is an equidigital number, since it uses as much as digits as its factorization.

140342101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140342101 is about 11846.6071514168. The cubic root of 140342101 is about 519.6720083985.

Adding to 140342101 its reverse (101243041), we get a palindrome (241585142).

The spelling of 140342101 in words is "one hundred forty million, three hundred forty-two thousand, one hundred one".