1194106121 has 4 divisors (see below), whose sum is σ = 1285960452. Its totient is φ = 1102251792.

The previous prime is 1194106097. The next prime is 1194106189. The reversal of 1194106121 is 1216014911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1216014911 = 11257 ⋅108023.

It can be written as a sum of positive squares in 2 ways, for example, as 258052096 + 936054025 = 16064^2 + 30595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1194106121 - 2¹⁸ = 1193843977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1194106021) 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, 45927146 + ... + 45927171.

It is an arithmetic number, because the mean of its divisors is an integer number (321490113).

Almost surely, 2^1194106121 is an apocalyptic number.

It is an amenable number.

1194106121 is a deficient number, since it is larger than the sum of its proper divisors (91854331).

1194106121 is an equidigital number, since it uses as much as digits as its factorization.

1194106121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91854330.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 1194106121 is about 34555.8406206534. The cubic root of 1194106121 is about 1060.9159405423.

The spelling of 1194106121 in words is "one billion, one hundred ninety-four million, one hundred six thousand, one hundred twenty-one".