1142420135 has 8 divisors (see below), whose sum is σ = 1376002080. Its totient is φ = 910537504.

The previous prime is 1142420129. The next prime is 1142420161. The reversal of 1142420135 is 5310242411.

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 1142420135 - 2¹² = 1142416039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142420135.

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, 423347 + ... + 426036.

It is an arithmetic number, because the mean of its divisors is an integer number (172000260).

Almost surely, 2^1142420135 is an apocalyptic number.

1142420135 is a deficient number, since it is larger than the sum of its proper divisors (233581945).

1142420135 is an equidigital number, since it uses as much as digits as its factorization.

1142420135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849657.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1142420135 is about 33799.7061377758. The cubic root of 1142420135 is about 1045.3826380479.

Adding to 1142420135 its reverse (5310242411), we get a palindrome (6452662546).

The spelling of 1142420135 in words is "one billion, one hundred forty-two million, four hundred twenty thousand, one hundred thirty-five".