1142362409 has 2 divisors, whose sum is σ = 1142362410. Its totient is φ = 1142362408.

The previous prime is 1142362399. The next prime is 1142362411. The reversal of 1142362409 is 9042632411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 813846784 + 328515625 = 28528^2 + 18125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142362409 - 2⁴ = 1142362393 is a prime.

Together with 1142362411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1142362489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571181204 + 571181205.

It is an arithmetic number, because the mean of its divisors is an integer number (571181205).

Almost surely, 2^1142362409 is an apocalyptic number.

It is an amenable number.

1142362409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142362409 is an equidigital number, since it uses as much as digits as its factorization.

1142362409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1142362409 is about 33798.8521846527. The cubic root of 1142362409 is about 1045.3650301724.

The spelling of 1142362409 in words is "one billion, one hundred forty-two million, three hundred sixty-two thousand, four hundred nine".