140271919 has 2 divisors, whose sum is σ = 140271920. Its totient is φ = 140271918.

The previous prime is 140271907. The next prime is 140271941. The reversal of 140271919 is 919172041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140271919 - 2⁹ = 140271407 is a prime.

It is a super-2 number, since 2×140271919² = 39352422519885122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140271949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70135959 + 70135960.

It is an arithmetic number, because the mean of its divisors is an integer number (70135960).

Almost surely, 2^140271919 is an apocalyptic number.

140271919 is a deficient number, since it is larger than the sum of its proper divisors (1).

140271919 is an equidigital number, since it uses as much as digits as its factorization.

140271919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 140271919 is about 11843.6446670778. The cubic root of 140271919 is about 519.5853684383.

The spelling of 140271919 in words is "one hundred forty million, two hundred seventy-one thousand, nine hundred nineteen".