142487029 has 4 divisors (see below), whose sum is σ = 142825900. Its totient is φ = 142148160.

The previous prime is 142487027. The next prime is 142487039. The reversal of 142487029 is 920784241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3294225 + 139192804 = 1815^2 + 11798^2 .

It is a cyclic number.

It is not a de Polignac number, because 142487029 - 2¹ = 142487027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142487027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168804 + ... + 169645.

It is an arithmetic number, because the mean of its divisors is an integer number (35706475).

Almost surely, 2^142487029 is an apocalyptic number.

It is an amenable number.

142487029 is a deficient number, since it is larger than the sum of its proper divisors (338871).

142487029 is an equidigital number, since it uses as much as digits as its factorization.

142487029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338870.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 142487029 is about 11936.7930785450. The cubic root of 142487029 is about 522.3061148877.

The spelling of 142487029 in words is "one hundred forty-two million, four hundred eighty-seven thousand, twenty-nine".