142005506 has 8 divisors (see below), whose sum is σ = 224219280. Its totient is φ = 67265748.

The previous prime is 142005503. The next prime is 142005517. The reversal of 142005506 is 605500241.

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

It is not an unprimeable number, because it can be changed into a prime (142005503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868456 + ... + 1868531.

It is an arithmetic number, because the mean of its divisors is an integer number (28027410).

Almost surely, 2^142005506 is an apocalyptic number.

142005506 is a deficient number, since it is larger than the sum of its proper divisors (82213774).

142005506 is a wasteful number, since it uses less digits than its factorization.

142005506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737008.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 142005506 is about 11916.6063122015. The cubic root of 142005506 is about 521.7170875854.

Adding to 142005506 its reverse (605500241), we get a palindrome (747505747).

The spelling of 142005506 in words is "one hundred forty-two million, five thousand, five hundred six".