1244092161 has 16 divisors (see below), whose sum is σ = 1820097216. Its totient is φ = 751148736.

The previous prime is 1244092159. The next prime is 1244092163. The reversal of 1244092161 is 1612904421.

It is an interprime number because it is at equal distance from previous prime (1244092159) and next prime (1244092163).

It is not a de Polignac number, because 1244092161 - 2¹ = 1244092159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244092163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298875 + ... + 303008.

It is an arithmetic number, because the mean of its divisors is an integer number (113756076).

Almost surely, 2^1244092161 is an apocalyptic number.

It is an amenable number.

1244092161 is a deficient number, since it is larger than the sum of its proper divisors (576005055).

1244092161 is a wasteful number, since it uses less digits than its factorization.

1244092161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601952.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1244092161 is about 35271.6906456155. The cubic root of 1244092161 is about 1075.5175905920.

Adding to 1244092161 its reverse (1612904421), we get a palindrome (2856996582).

It can be divided in two parts, 1244092 and 161, that added together give a triangular number (1244253 = T₁₅₇₇).

The spelling of 1244092161 in words is "one billion, two hundred forty-four million, ninety-two thousand, one hundred sixty-one".