194145241 has 8 divisors (see below), whose sum is σ = 196221960. Its totient is φ = 192074112.

The previous prime is 194145239. The next prime is 194145247. The reversal of 194145241 is 142541491.

It can be written as a sum of positive squares in 4 ways, for example, as 82737216 + 111408025 = 9096^2 + 10555^2 .

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 194145241 - 2¹ = 194145239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194145247) 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, 129291 + ... + 130783.

It is an arithmetic number, because the mean of its divisors is an integer number (24527745).

Almost surely, 2^194145241 is an apocalyptic number.

It is an amenable number.

194145241 is a deficient number, since it is larger than the sum of its proper divisors (2076719).

194145241 is a wasteful number, since it uses less digits than its factorization.

194145241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its digits is 5760, while the sum is 31.

The square root of 194145241 is about 13933.6011497387. The cubic root of 194145241 is about 579.0404675595.

The spelling of 194145241 in words is "one hundred ninety-four million, one hundred forty-five thousand, two hundred forty-one".