193949249 has 8 divisors (see below), whose sum is σ = 209200320. Its totient is φ = 178745616.

The previous prime is 193949233. The next prime is 193949251. The reversal of 193949249 is 942949391.

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

It is a cyclic number.

It is not a de Polignac number, because 193949249 - 2⁴ = 193949233 is a prime.

It is a super-2 number, since 2×193949249² = 75232622375328002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193949197 and 193949206.

It is not an unprimeable number, because it can be changed into a prime (193949219) 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, 3119 + ... + 19940.

It is an arithmetic number, because the mean of its divisors is an integer number (26150040).

Almost surely, 2^193949249 is an apocalyptic number.

It is an amenable number.

193949249 is a deficient number, since it is larger than the sum of its proper divisors (15251071).

193949249 is a wasteful number, since it uses less digits than its factorization.

193949249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23719.

The product of its digits is 629856, while the sum is 50.

The square root of 193949249 is about 13926.5663032924. The cubic root of 193949249 is about 578.8455524724.

The spelling of 193949249 in words is "one hundred ninety-three million, nine hundred forty-nine thousand, two hundred forty-nine".