194976101 has 2 divisors, whose sum is σ = 194976102. Its totient is φ = 194976100.

The previous prime is 194976091. The next prime is 194976121. The reversal of 194976101 is 101679491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139830625 + 55145476 = 11825^2 + 7426^2 .

It is an emirp because it is prime and its reverse (101679491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194976101 - 2²² = 190781797 is a prime.

It is a super-2 number, since 2×194976101² = 76031359922324402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194976121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97488050 + 97488051.

It is an arithmetic number, because the mean of its divisors is an integer number (97488051).

Almost surely, 2^194976101 is an apocalyptic number.

It is an amenable number.

194976101 is a deficient number, since it is larger than the sum of its proper divisors (1).

194976101 is an equidigital number, since it uses as much as digits as its factorization.

194976101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 194976101 is about 13963.3842960795. The cubic root of 194976101 is about 579.8653085967.

The spelling of 194976101 in words is "one hundred ninety-four million, nine hundred seventy-six thousand, one hundred one".