194930157 has 8 divisors (see below), whose sum is σ = 260525920. Its totient is φ = 129643920.

The previous prime is 194930149. The next prime is 194930161. The reversal of 194930157 is 751039491.

It is a happy number.

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

It is not a de Polignac number, because 194930157 - 2³ = 194930149 is a prime.

It is a super-2 number, since 2×194930157² = 75995532216089298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194930147) 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, 75907 + ... + 78432.

It is an arithmetic number, because the mean of its divisors is an integer number (32565740).

Almost surely, 2^194930157 is an apocalyptic number.

It is an amenable number.

194930157 is a deficient number, since it is larger than the sum of its proper divisors (65595763).

194930157 is a wasteful number, since it uses less digits than its factorization.

194930157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154763.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 194930157 is about 13961.7390392458. The cubic root of 194930157 is about 579.8197586986.

The spelling of 194930157 in words is "one hundred ninety-four million, nine hundred thirty thousand, one hundred fifty-seven".