194553136 has 40 divisors (see below), whose sum is σ = 395197920. Its totient is φ = 92606976.

The previous prime is 194553109. The next prime is 194553137. The reversal of 194553136 is 631355491.

It is a happy number.

194553136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 194553095 and 194553104.

It is not an unprimeable number, because it can be changed into a prime (194553137) 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, 84610 + ... + 86878.

It is an arithmetic number, because the mean of its divisors is an integer number (9879948).

Almost surely, 2^194553136 is an apocalyptic number.

194553136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

194553136 is the 7456-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194553136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197598960).

194553136 is an abundant number, since it is smaller than the sum of its proper divisors (200644784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194553136 is a wasteful number, since it uses less digits than its factorization.

194553136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2527 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 194553136 is about 13948.2305687854. The cubic root of 194553136 is about 579.4457011099.

The spelling of 194553136 in words is "one hundred ninety-four million, five hundred fifty-three thousand, one hundred thirty-six".