142215150 has 144 divisors (see below), whose sum is σ = 447828480. Its totient is φ = 29534400.

The previous prime is 142215131. The next prime is 142215163. The reversal of 142215150 is 51512241.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 79971 + ... + 81729.

It is an arithmetic number, because the mean of its divisors is an integer number (3109920).

Almost surely, 2^142215150 is an apocalyptic number.

142215150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142215150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223914240).

142215150 is an abundant number, since it is smaller than the sum of its proper divisors (305613330).

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

142215150 is a wasteful number, since it uses less digits than its factorization.

142215150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 142215150 is about 11925.3993643819. The cubic root of 142215150 is about 521.9736998831.

Adding to 142215150 its reverse (51512241), we get a palindrome (193727391).

The spelling of 142215150 in words is "one hundred forty-two million, two hundred fifteen thousand, one hundred fifty".