194157601 has 4 divisors (see below), whose sum is σ = 211808304. Its totient is φ = 176506900.

The previous prime is 194157577. The next prime is 194157641. The reversal of 194157601 is 106751491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 194157601 - 2⁵ = 194157569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194157641) 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, 8825335 + ... + 8825356.

It is an arithmetic number, because the mean of its divisors is an integer number (52952076).

Almost surely, 2^194157601 is an apocalyptic number.

194157601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

194157601 is a deficient number, since it is larger than the sum of its proper divisors (17650703).

194157601 is a wasteful number, since it uses less digits than its factorization.

194157601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17650702.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 194157601 is about 13934.0446748243. The cubic root of 194157601 is about 579.0527552473.

The spelling of 194157601 in words is "one hundred ninety-four million, one hundred fifty-seven thousand, six hundred one".