1953734194 has 8 divisors (see below), whose sum is σ = 2931252588. Its totient is φ = 976650000.

The previous prime is 1953734093. The next prime is 1953734213. The reversal of 1953734194 is 4914373591.

It can be written as a sum of positive squares in 2 ways, for example, as 1952490969 + 1243225 = 44187^2 + 1115^2 .

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

It is a super-3 number, since 3×1953734194³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97057 + ... + 115444.

Almost surely, 2^1953734194 is an apocalyptic number.

1953734194 is a deficient number, since it is larger than the sum of its proper divisors (977518394).

1953734194 is a wasteful number, since it uses less digits than its factorization.

1953734194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217100.

The product of its digits is 408240, while the sum is 46.

The square root of 1953734194 is about 44201.0655301430. The cubic root of 1953734194 is about 1250.1299478770.

The spelling of 1953734194 in words is "one billion, nine hundred fifty-three million, seven hundred thirty-four thousand, one hundred ninety-four".