2194387101 has 6 divisors (see below), whose sum is σ = 3169670270. Its totient is φ = 1462924728.

The previous prime is 2194387067. The next prime is 2194387103. The reversal of 2194387101 is 1017834912.

It is a happy number.

2194387101 is a `hidden beast` number, since 219 + 438 + 7 + 1 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1703543076 + 490844025 = 41274^2 + 22155^2 .

It is not a de Polignac number, because 2194387101 - 2¹³ = 2194378909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194387103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121910386 + ... + 121910403.

Almost surely, 2^2194387101 is an apocalyptic number.

It is an amenable number.

2194387101 is a deficient number, since it is larger than the sum of its proper divisors (975283169).

2194387101 is a wasteful number, since it uses less digits than its factorization.

2194387101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243820795 (or 243820792 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 2194387101 is about 46844.2856813934. The cubic root of 2194387101 is about 1299.4844308623.

The spelling of 2194387101 in words is "two billion, one hundred ninety-four million, three hundred eighty-seven thousand, one hundred one".