1142765135 has 16 divisors (see below), whose sum is σ = 1383794496. Its totient is φ = 905929728.

The previous prime is 1142765101. The next prime is 1142765137. The reversal of 1142765135 is 5315672411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1142765135 - 2⁸ = 1142764879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142765095 and 1142765104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142765137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292817 + ... + 296693.

It is an arithmetic number, because the mean of its divisors is an integer number (86487156).

Almost surely, 2^1142765135 is an apocalyptic number.

1142765135 is a deficient number, since it is larger than the sum of its proper divisors (241029361).

1142765135 is a wasteful number, since it uses less digits than its factorization.

1142765135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402.

The product of its digits is 25200, while the sum is 35.

The square root of 1142765135 is about 33804.8093471920. The cubic root of 1142765135 is about 1045.4878593234.

The spelling of 1142765135 in words is "one billion, one hundred forty-two million, seven hundred sixty-five thousand, one hundred thirty-five".