1121354239 has 2 divisors, whose sum is σ = 1121354240. Its totient is φ = 1121354238.

The previous prime is 1121354233. The next prime is 1121354251. The reversal of 1121354239 is 9324531211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121354239 - 2²³ = 1112965631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121354239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121354233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560677119 + 560677120.

It is an arithmetic number, because the mean of its divisors is an integer number (560677120).

Almost surely, 2^1121354239 is an apocalyptic number.

1121354239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121354239 is an equidigital number, since it uses as much as digits as its factorization.

1121354239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 1121354239 is about 33486.6277639299. The cubic root of 1121354239 is about 1038.9172159501.

The spelling of 1121354239 in words is "one billion, one hundred twenty-one million, three hundred fifty-four thousand, two hundred thirty-nine".