152212520 has 16 divisors (see below), whose sum is σ = 342478260. Its totient is φ = 60884992.

The previous prime is 152212499. The next prime is 152212523. The reversal of 152212520 is 25212251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 141467236 + 10745284 = 11894^2 + 3278^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 152212492 and 152212501.

It is not an unprimeable number, because it can be changed into a prime (152212523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902617 + ... + 1902696.

Almost surely, 2^152212520 is an apocalyptic number.

152212520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152212520 is an abundant number, since it is smaller than the sum of its proper divisors (190265740).

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

152212520 is a wasteful number, since it uses less digits than its factorization.

152212520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805324 (or 3805320 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 152212520 is about 12337.4438195276. The cubic root of 152212520 is about 533.9289370384.

Adding to 152212520 its reverse (25212251), we get a palindrome (177424771).

The spelling of 152212520 in words is "one hundred fifty-two million, two hundred twelve thousand, five hundred twenty".