152143720 has 32 divisors (see below), whose sum is σ = 346177800. Its totient is φ = 60172288.

The previous prime is 152143709. The next prime is 152143721. The reversal of 152143720 is 27341251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 115734564 + 36409156 = 10758^2 + 6034^2 .

It is not an unprimeable number, because it can be changed into a prime (152143721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17809 + ... + 24928.

Almost surely, 2^152143720 is an apocalyptic number.

152143720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152143720 is an abundant number, since it is smaller than the sum of its proper divisors (194034080).

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

152143720 is a wasteful number, since it uses less digits than its factorization.

152143720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42837 (or 42833 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 152143720 is about 12334.6552444728. The cubic root of 152143720 is about 533.8484796908.

Adding to 152143720 its reverse (27341251), we get a palindrome (179484971).

The spelling of 152143720 in words is "one hundred fifty-two million, one hundred forty-three thousand, seven hundred twenty".