120142506 has 16 divisors (see below), whose sum is σ = 262129248. Its totient is φ = 36406800.

The previous prime is 120142499. The next prime is 120142513. The reversal of 120142506 is 605241021.

It is an interprime number because it is at equal distance from previous prime (120142499) and next prime (120142513).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910105 + ... + 910236.

It is an arithmetic number, because the mean of its divisors is an integer number (16383078).

Almost surely, 2^120142506 is an apocalyptic number.

120142506 is an abundant number, since it is smaller than the sum of its proper divisors (141986742).

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

120142506 is a wasteful number, since it uses less digits than its factorization.

120142506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820357.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 120142506 is about 10960.9536993822. The cubic root of 120142506 is about 493.4375876373.

Adding to 120142506 its reverse (605241021), we get a palindrome (725383527).

The spelling of 120142506 in words is "one hundred twenty million, one hundred forty-two thousand, five hundred six".