193317490 has 8 divisors (see below), whose sum is σ = 347971500. Its totient is φ = 77326992.

The previous prime is 193317473. The next prime is 193317497. The reversal of 193317490 is 94713391.

193317490 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 2 ways, for example, as 167521249 + 25796241 = 12943^2 + 5079^2 .

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

It is not an unprimeable number, because it can be changed into a prime (193317497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9665865 + ... + 9665884.

Almost surely, 2^193317490 is an apocalyptic number.

193317490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193317490 is a deficient number, since it is larger than the sum of its proper divisors (154654010).

193317490 is a wasteful number, since it uses less digits than its factorization.

193317490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19331756.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 193317490 is about 13903.8660091357. The cubic root of 193317490 is about 578.2163695471.

The spelling of 193317490 in words is "one hundred ninety-three million, three hundred seventeen thousand, four hundred ninety".