193000000 has 98 divisors (see below), whose sum is σ = 481204778. Its totient is φ = 76800000.

The previous prime is 192999973. The next prime is 193000007. The reversal of 193000000 is 391.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 187580416 + 5419584 = 13696^2 + 2328^2 .

It is not an unprimeable number, because it can be changed into a prime (193000007) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 999904 + ... + 1000096.

Almost surely, 2^193000000 is an apocalyptic number.

193000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240602389).

193000000 is an abundant number, since it is smaller than the sum of its proper divisors (288204778).

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

193000000 is an frugal number, since it uses more digits than its factorization.

193000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 193000000 is about 13892.4439894498. The cubic root of 193000000 is about 577.8996565152.

Adding to 193000000 its reverse (391), we get a palindrome (193000391).

The spelling of 193000000 in words is "one hundred ninety-three million", and thus it is an aban number.