140267919 has 12 divisors (see below), whose sum is σ = 205572248. Its totient is φ = 85010640.

The previous prime is 140267909. The next prime is 140267921. The reversal of 140267919 is 919762041.

It is not a de Polignac number, because 140267919 - 2⁴ = 140267903 is a prime.

It is a super-2 number, since 2×140267919² = 39350178201181122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140267909) 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 in 11 ways as a sum of consecutive naturals, for example, 192844 + ... + 193569.

Almost surely, 2^140267919 is an apocalyptic number.

140267919 is a deficient number, since it is larger than the sum of its proper divisors (65304329).

140267919 is a wasteful number, since it uses less digits than its factorization.

140267919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386438 (or 386427 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 140267919 is about 11843.4757989367. The cubic root of 140267919 is about 519.5804295518.

It can be divided in two parts, 14026 and 7919, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 140267919 in words is "one hundred forty million, two hundred sixty-seven thousand, nine hundred nineteen".