194625001 has 4 divisors (see below), whose sum is σ = 194818900. Its totient is φ = 194431104.

The previous prime is 194624981. The next prime is 194625007. The reversal of 194625001 is 100526491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66912400 + 127712601 = 8180^2 + 11301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194625001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194625007) 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, 95436 + ... + 97453.

It is an arithmetic number, because the mean of its divisors is an integer number (48704725).

Almost surely, 2^194625001 is an apocalyptic number.

It is an amenable number.

194625001 is a deficient number, since it is larger than the sum of its proper divisors (193899).

194625001 is a wasteful number, since it uses less digits than its factorization.

194625001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193898.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 194625001 is about 13950.8064641439. The cubic root of 194625001 is about 579.5170385003.

The spelling of 194625001 in words is "one hundred ninety-four million, six hundred twenty-five thousand, one".