1442011387 has 2 divisors, whose sum is σ = 1442011388. Its totient is φ = 1442011386.

The previous prime is 1442011331. The next prime is 1442011393. The reversal of 1442011387 is 7831102441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442011387 - 2¹¹ = 1442009339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442011187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721005693 + 721005694.

It is an arithmetic number, because the mean of its divisors is an integer number (721005694).

Almost surely, 2^1442011387 is an apocalyptic number.

1442011387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442011387 is an equidigital number, since it uses as much as digits as its factorization.

1442011387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1442011387 is about 37973.8250246140. The cubic root of 1442011387 is about 1129.7687643902.

The spelling of 1442011387 in words is "one billion, four hundred forty-two million, eleven thousand, three hundred eighty-seven".