194157241 has 8 divisors (see below), whose sum is σ = 199628744. Its totient is φ = 188697600.

The previous prime is 194157211. The next prime is 194157307. The reversal of 194157241 is 142751491.

It can be written as a sum of positive squares in 4 ways, for example, as 135955600 + 58201641 = 11660^2 + 7629^2 .

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 194157241 - 2⁷ = 194157113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194157197 and 194157206.

It is not an unprimeable number, because it can be changed into a prime (194157211) 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, 38041 + ... + 42841.

It is an arithmetic number, because the mean of its divisors is an integer number (24953593).

Almost surely, 2^194157241 is an apocalyptic number.

It is an amenable number.

194157241 is a deficient number, since it is larger than the sum of its proper divisors (5471503).

194157241 is a wasteful number, since it uses less digits than its factorization.

194157241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5931.

The product of its digits is 10080, while the sum is 34.

The square root of 194157241 is about 13934.0317568176. The cubic root of 194157241 is about 579.0523973609.

The spelling of 194157241 in words is "one hundred ninety-four million, one hundred fifty-seven thousand, two hundred forty-one".