142245500 has 48 divisors (see below), whose sum is σ = 317326464. Its totient is φ = 55678400.

The previous prime is 142245487. The next prime is 142245503. The reversal of 142245500 is 5542241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142245503) 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 15 ways as a sum of consecutive naturals, for example, 20474 + ... + 26526.

It is an arithmetic number, because the mean of its divisors is an integer number (6610968).

Almost surely, 2^142245500 is an apocalyptic number.

142245500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142245500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158663232).

142245500 is an abundant number, since it is smaller than the sum of its proper divisors (175080964).

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

142245500 is a wasteful number, since it uses less digits than its factorization.

142245500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119 (or 6107 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 142245500 is about 11926.6717905709. The cubic root of 142245500 is about 522.0108285457.

Adding to 142245500 its reverse (5542241), we get a palindrome (147787741).

It can be divided in two parts, 1422 and 45500, that multiplied together give a triangular number (64701000 = T₁₁₃₇₅).

The spelling of 142245500 in words is "one hundred forty-two million, two hundred forty-five thousand, five hundred".