1142306605 has 8 divisors (see below), whose sum is σ = 1495383264. Its totient is φ = 830768400.

The previous prime is 1142306603. The next prime is 1142306609. The reversal of 1142306605 is 5066032411.

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

It is not a de Polignac number, because 1142306605 - 2¹ = 1142306603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142306603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10384551 + ... + 10384660.

It is an arithmetic number, because the mean of its divisors is an integer number (186922908).

Almost surely, 2^1142306605 is an apocalyptic number.

It is an amenable number.

1142306605 is a deficient number, since it is larger than the sum of its proper divisors (353076659).

1142306605 is a wasteful number, since it uses less digits than its factorization.

1142306605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20769227.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1142306605 is about 33798.0266435779. The cubic root of 1142306605 is about 1045.3480079911.

The spelling of 1142306605 in words is "one billion, one hundred forty-two million, three hundred six thousand, six hundred five".