140134919 has 2 divisors, whose sum is σ = 140134920. Its totient is φ = 140134918.

The previous prime is 140134889. The next prime is 140134921. The reversal of 140134919 is 919431041.

It is a strong prime.

It is an emirp because it is prime and its reverse (919431041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140134919 is a prime.

It is a super-2 number, since 2×140134919² = 39275591046273122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 140134921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140134949) 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, 70067459 + 70067460.

It is an arithmetic number, because the mean of its divisors is an integer number (70067460).

Almost surely, 2^140134919 is an apocalyptic number.

140134919 is a deficient number, since it is larger than the sum of its proper divisors (1).

140134919 is an equidigital number, since it uses as much as digits as its factorization.

140134919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 140134919 is about 11837.8595615931. The cubic root of 140134919 is about 519.4161580864.

The spelling of 140134919 in words is "one hundred forty million, one hundred thirty-four thousand, nine hundred nineteen".