140434819 has 4 divisors (see below), whose sum is σ = 160496944. Its totient is φ = 120372696.

The previous prime is 140434817. The next prime is 140434831. The reversal of 140434819 is 918434041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140434819 - 2¹ = 140434817 is a prime.

It is a super-2 number, since 2×140434819² = 39443876775125522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140434813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10031052 + ... + 10031065.

It is an arithmetic number, because the mean of its divisors is an integer number (40124236).

Almost surely, 2^140434819 is an apocalyptic number.

140434819 is a deficient number, since it is larger than the sum of its proper divisors (20062125).

140434819 is an equidigital number, since it uses as much as digits as its factorization.

140434819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20062124.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 140434819 is about 11850.5197776300. The cubic root of 140434819 is about 519.7864248661.

The spelling of 140434819 in words is "one hundred forty million, four hundred thirty-four thousand, eight hundred nineteen".