194120953 has 8 divisors (see below), whose sum is σ = 209461896. Its totient is φ = 178838400.

The previous prime is 194120947. The next prime is 194120957. The reversal of 194120953 is 359021491.

194120953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 32398864 + 161722089 = 5692^2 + 12717^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-194120953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194120957) 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, 7558 + ... + 21103.

It is an arithmetic number, because the mean of its divisors is an integer number (26182737).

Almost surely, 2^194120953 is an apocalyptic number.

194120953 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

194120953 is a deficient number, since it is larger than the sum of its proper divisors (15340943).

194120953 is a wasteful number, since it uses less digits than its factorization.

194120953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29195.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 194120953 is about 13932.7295602836. The cubic root of 194120953 is about 579.0163201372.

The spelling of 194120953 in words is "one hundred ninety-four million, one hundred twenty thousand, nine hundred fifty-three".