1442120357 has 2 divisors, whose sum is σ = 1442120358. Its totient is φ = 1442120356.

The previous prime is 1442120327. The next prime is 1442120363. The reversal of 1442120357 is 7530212441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 724201921 + 717918436 = 26911^2 + 26794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442120357 is a prime.

It is a super-2 number, since 2×1442120357² = 4159422248147614898, which contains 22 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442120327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721060178 + 721060179.

It is an arithmetic number, because the mean of its divisors is an integer number (721060179).

Almost surely, 2^1442120357 is an apocalyptic number.

It is an amenable number.

1442120357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442120357 is an equidigital number, since it uses as much as digits as its factorization.

1442120357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1442120357 is about 37975.2598016129. The cubic root of 1442120357 is about 1129.7972218172.

Adding to 1442120357 its reverse (7530212441), we get a palindrome (8972332798).

The spelling of 1442120357 in words is "one billion, four hundred forty-two million, one hundred twenty thousand, three hundred fifty-seven".