1442181373 has 4 divisors (see below), whose sum is σ = 1443151420. Its totient is φ = 1441211328.

The previous prime is 1442181359. The next prime is 1442181379. The reversal of 1442181373 is 3731812441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3731812441 = 7 ⋅533116063.

It can be written as a sum of positive squares in 2 ways, for example, as 859779684 + 582401689 = 29322^2 + 24133^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442181373 - 2²¹ = 1440084221 is a prime.

It is a super-2 number, since 2×1442181373² = 4159774225256330258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442181379) 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, 482790 + ... + 485767.

It is an arithmetic number, because the mean of its divisors is an integer number (360787855).

Almost surely, 2^1442181373 is an apocalyptic number.

It is an amenable number.

1442181373 is a deficient number, since it is larger than the sum of its proper divisors (970047).

1442181373 is an equidigital number, since it uses as much as digits as its factorization.

1442181373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970046.

The product of its digits is 16128, while the sum is 34.

The square root of 1442181373 is about 37976.0631582580. The cubic root of 1442181373 is about 1129.8131554699.

The spelling of 1442181373 in words is "one billion, four hundred forty-two million, one hundred eighty-one thousand, three hundred seventy-three".