840119953 has 4 divisors (see below), whose sum is σ = 842460480. Its totient is φ = 837779428.

The previous prime is 840119911. The next prime is 840119981. The reversal of 840119953 is 359911048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 840119953 - 2¹³ = 840111761 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (840119983) 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 3 ways as a sum of consecutive naturals, for example, 1169725 + ... + 1170442.

It is an arithmetic number, because the mean of its divisors is an integer number (210615120).

Almost surely, 2^840119953 is an apocalyptic number.

It is an amenable number.

840119953 is a deficient number, since it is larger than the sum of its proper divisors (2340527).

840119953 is a wasteful number, since it uses less digits than its factorization.

840119953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340526.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 840119953 is about 28984.8228043575. The cubic root of 840119953 is about 943.5837067467.

The spelling of 840119953 in words is "eight hundred forty million, one hundred nineteen thousand, nine hundred fifty-three".