1142324405 has 8 divisors (see below), whose sum is σ = 1373168472. Its totient is φ = 912273408.

The previous prime is 1142324387. The next prime is 1142324419. The reversal of 1142324405 is 5044232411.

1142324405 = 361² + 362² + ... + 1514².

It can be written as a sum of positive squares in 4 ways, for example, as 279257521 + 863066884 = 16711^2 + 29378^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142324405 - 2⁸ = 1142324149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195092 + ... + 200861.

It is an arithmetic number, because the mean of its divisors is an integer number (171646059).

Almost surely, 2^1142324405 is an apocalyptic number.

It is an amenable number.

1142324405 is a deficient number, since it is larger than the sum of its proper divisors (230844067).

1142324405 is an equidigital number, since it uses as much as digits as its factorization.

1142324405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396535.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1142324405 is about 33798.2899715355. The cubic root of 1142324405 is about 1045.3534376769.

Adding to 1142324405 its reverse (5044232411), we get a palindrome (6186556816).

The spelling of 1142324405 in words is "one billion, one hundred forty-two million, three hundred twenty-four thousand, four hundred five".