1142235411 has 8 divisors (see below), whose sum is σ = 1532100864. Its totient is φ = 756930120.

The previous prime is 1142235403. The next prime is 1142235421. The reversal of 1142235411 is 1145322411.

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

It is not a de Polignac number, because 1142235411 - 2³ = 1142235403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142235401) 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, 1139455 + ... + 1140456.

It is an arithmetic number, because the mean of its divisors is an integer number (191512608).

Almost surely, 2^1142235411 is an apocalyptic number.

1142235411 is a deficient number, since it is larger than the sum of its proper divisors (389865453).

1142235411 is a wasteful number, since it uses less digits than its factorization.

1142235411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280081.

The product of its digits is 960, while the sum is 24.

The square root of 1142235411 is about 33796.9733999954. The cubic root of 1142235411 is about 1045.3262905141.

Adding to 1142235411 its reverse (1145322411), we get a palindrome (2287557822).

The spelling of 1142235411 in words is "one billion, one hundred forty-two million, two hundred thirty-five thousand, four hundred eleven".