140857019 has 8 divisors (see below), whose sum is σ = 149312160. Its totient is φ = 132420736.

The previous prime is 140857009. The next prime is 140857027. The reversal of 140857019 is 910758041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140857019 is a prime.

It is a super-2 number, since 2×140857019² = 39681399603132722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140857019.

It is not an unprimeable number, because it can be changed into a prime (140857009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12497 + ... + 20925.

It is an arithmetic number, because the mean of its divisors is an integer number (18664020).

Almost surely, 2^140857019 is an apocalyptic number.

140857019 is a deficient number, since it is larger than the sum of its proper divisors (8455141).

140857019 is an equidigital number, since it uses as much as digits as its factorization.

140857019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 140857019 is about 11868.3199737789. The cubic root of 140857019 is about 520.3067950431.

The spelling of 140857019 in words is "one hundred forty million, eight hundred fifty-seven thousand, nineteen".