1042155224239 has 2 divisors, whose sum is σ = 1042155224240. Its totient is φ = 1042155224238.

The previous prime is 1042155224233. The next prime is 1042155224249. The reversal of 1042155224239 is 9324225512401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042155224239 - 2⁷ = 1042155224111 is a prime.

It is a super-2 number, since 2×1042155224239² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042155224233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521077612119 + 521077612120.

It is an arithmetic number, because the mean of its divisors is an integer number (521077612120).

Almost surely, 2^{1042155224239} is an apocalyptic number.

1042155224239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042155224239 is an equidigital number, since it uses as much as digits as its factorization.

1042155224239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1042155224239 in words is "one trillion, forty-two billion, one hundred fifty-five million, two hundred twenty-four thousand, two hundred thirty-nine".