1142313169 has 2 divisors, whose sum is σ = 1142313170. Its totient is φ = 1142313168.

The previous prime is 1142313071. The next prime is 1142313191. The reversal of 1142313169 is 9613132411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013785600 + 128527569 = 31840^2 + 11337^2 .

It is an emirp because it is prime and its reverse (9613132411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142313169 - 2¹⁹ = 1141788881 is a prime.

It is a super-2 number, since 2×1142313169² = 2609758752141645122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1142313169.

It is not a weakly prime, because it can be changed into another prime (1142319169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571156584 + 571156585.

It is an arithmetic number, because the mean of its divisors is an integer number (571156585).

Almost surely, 2^1142313169 is an apocalyptic number.

It is an amenable number.

1142313169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142313169 is an equidigital number, since it uses as much as digits as its factorization.

1142313169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 1142313169 is about 33798.1237496995. The cubic root of 1142313169 is about 1045.3500102705.

The spelling of 1142313169 in words is "one billion, one hundred forty-two million, three hundred thirteen thousand, one hundred sixty-nine".