140435919 has 12 divisors (see below), whose sum is σ = 218456056. Its totient is φ = 86422032.

The previous prime is 140435887. The next prime is 140435923. The reversal of 140435919 is 919534041.

It is a happy number.

It is not a de Polignac number, because 140435919 - 2⁵ = 140435887 is a prime.

It is a super-2 number, since 2×140435919² = 39444494690749122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140435959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600037 + ... + 600270.

Almost surely, 2^140435919 is an apocalyptic number.

140435919 is a deficient number, since it is larger than the sum of its proper divisors (78020137).

140435919 is a wasteful number, since it uses less digits than its factorization.

140435919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200326 (or 1200323 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 140435919 is about 11850.5661890055. The cubic root of 140435919 is about 519.7877819929.

The spelling of 140435919 in words is "one hundred forty million, four hundred thirty-five thousand, nine hundred nineteen".