1142740001 has 4 divisors (see below), whose sum is σ = 1230643092. Its totient is φ = 1054836912.

The previous prime is 1142739979. The next prime is 1142740033. The reversal of 1142740001 is 1000472411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217120225 + 925619776 = 14735^2 + 30424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142740001 - 2⁶ = 1142739937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142740091) 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 in 3 ways as a sum of consecutive naturals, for example, 43951526 + ... + 43951551.

It is an arithmetic number, because the mean of its divisors is an integer number (307660773).

Almost surely, 2^1142740001 is an apocalyptic number.

It is an amenable number.

1142740001 is a deficient number, since it is larger than the sum of its proper divisors (87903091).

1142740001 is an equidigital number, since it uses as much as digits as its factorization.

1142740001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87903090.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1142740001 is about 33804.4375933101. The cubic root of 1142740001 is about 1045.4801944400.

The spelling of 1142740001 in words is "one billion, one hundred forty-two million, seven hundred forty thousand, one".