1142953959 has 24 divisors (see below), whose sum is σ = 1802805120. Its totient is φ = 642041904.

The previous prime is 1142953951. The next prime is 1142953963. The reversal of 1142953959 is 9593592411.

It is not a de Polignac number, because 1142953959 - 2³ = 1142953951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142953951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57219 + ... + 74564.

It is an arithmetic number, because the mean of its divisors is an integer number (75116880).

Almost surely, 2^1142953959 is an apocalyptic number.

1142953959 is a deficient number, since it is larger than the sum of its proper divisors (659851161).

1142953959 is a wasteful number, since it uses less digits than its factorization.

1142953959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131859 (or 131852 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 1142953959 is about 33807.6020888794. The cubic root of 1142953959 is about 1045.5454396378.

The spelling of 1142953959 in words is "one billion, one hundred forty-two million, nine hundred fifty-three thousand, nine hundred fifty-nine".