1142940349 has 2 divisors, whose sum is σ = 1142940350. Its totient is φ = 1142940348.

The previous prime is 1142940343. The next prime is 1142940361. The reversal of 1142940349 is 9430492411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1131851449 + 11088900 = 33643^2 + 3330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142940349 - 2⁵ = 1142940317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142940343) 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, 571470174 + 571470175.

It is an arithmetic number, because the mean of its divisors is an integer number (571470175).

Almost surely, 2^1142940349 is an apocalyptic number.

It is an amenable number.

1142940349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142940349 is an equidigital number, since it uses as much as digits as its factorization.

1142940349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1142940349 is about 33807.4008021912. The cubic root of 1142940349 is about 1045.5412895932.

The spelling of 1142940349 in words is "one billion, one hundred forty-two million, nine hundred forty thousand, three hundred forty-nine".