140071919 has 16 divisors (see below), whose sum is σ = 156248064. Its totient is φ = 124696800.

The previous prime is 140071913. The next prime is 140071969. The reversal of 140071919 is 919170041.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 140071919 - 2⁸ = 140071663 is a prime.

It is a super-2 number, since 2×140071919² = 39240284984685122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140071913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202364 + ... + 203054.

It is an arithmetic number, because the mean of its divisors is an integer number (9765504).

Almost surely, 2^140071919 is an apocalyptic number.

140071919 is a deficient number, since it is larger than the sum of its proper divisors (16176145).

140071919 is a wasteful number, since it uses less digits than its factorization.

140071919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 140071919 is about 11835.1983084357. The cubic root of 140071919 is about 519.3383090078.

The spelling of 140071919 in words is "one hundred forty million, seventy-one thousand, nine hundred nineteen".