142240506 has 32 divisors (see below), whose sum is σ = 293025600. Its totient is φ = 45997056.

The previous prime is 142240481. The next prime is 142240519. The reversal of 142240506 is 605042241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98965 + ... + 100391.

It is an arithmetic number, because the mean of its divisors is an integer number (9157050).

Almost surely, 2^142240506 is an apocalyptic number.

142240506 is an abundant number, since it is smaller than the sum of its proper divisors (150785094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142240506 is a wasteful number, since it uses less digits than its factorization.

142240506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142240506 is about 11926.4624260507. The cubic root of 142240506 is about 522.0047195005.

Adding to 142240506 its reverse (605042241), we get a palindrome (747282747).

The spelling of 142240506 in words is "one hundred forty-two million, two hundred forty thousand, five hundred six".