142156043 has 8 divisors (see below), whose sum is σ = 150131520. Its totient is φ = 134229960.

The previous prime is 142156037. The next prime is 142156073. The reversal of 142156043 is 340651241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142156043 is a prime.

It is a super-2 number, since 2×142156043² = 40416681122835698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142156073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6353 + ... + 18018.

It is an arithmetic number, because the mean of its divisors is an integer number (18766440).

Almost surely, 2^142156043 is an apocalyptic number.

142156043 is a deficient number, since it is larger than the sum of its proper divisors (7975477).

142156043 is a wasteful number, since it uses less digits than its factorization.

142156043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24697.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 142156043 is about 11922.9209089048. The cubic root of 142156043 is about 521.9013761897.

The spelling of 142156043 in words is "one hundred forty-two million, one hundred fifty-six thousand, forty-three".