152142224 has 80 divisors (see below), whose sum is σ = 333072432. Its totient is φ = 66852864.

The previous prime is 152142223. The next prime is 152142233. The reversal of 152142224 is 422241251.

It can be written as a sum of positive squares in 8 ways, for example, as 4276624 + 147865600 = 2068^2 + 12160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 152142224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152142223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407702 + ... + 408074.

Almost surely, 2^152142224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 152142224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166536216).

152142224 is an abundant number, since it is smaller than the sum of its proper divisors (180930208).

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

152142224 is a wasteful number, since it uses less digits than its factorization.

152142224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 478 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 152142224 is about 12334.5946021748. The cubic root of 152142224 is about 533.8467299418.

Adding to 152142224 its reverse (422241251), we get a palindrome (574383475).

The spelling of 152142224 in words is "one hundred fifty-two million, one hundred forty-two thousand, two hundred twenty-four".