152112531 has 4 divisors (see below), whose sum is σ = 202816712. Its totient is φ = 101408352.

The previous prime is 152112529. The next prime is 152112551. The reversal of 152112531 is 135211251.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 152112531 - 2¹ = 152112529 is a prime.

It is a super-2 number, since 2×152112531² = 46276444174451922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152112498 and 152112507.

It is not an unprimeable number, because it can be changed into a prime (152112551) 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 3 ways as a sum of consecutive naturals, for example, 25352086 + ... + 25352091.

It is an arithmetic number, because the mean of its divisors is an integer number (50704178).

Almost surely, 2^152112531 is an apocalyptic number.

152112531 is a deficient number, since it is larger than the sum of its proper divisors (50704181).

152112531 is an equidigital number, since it uses as much as digits as its factorization.

152112531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50704180.

The product of its digits is 300, while the sum is 21.

The square root of 152112531 is about 12333.3908962621. The cubic root of 152112531 is about 533.8119980927.

Adding to 152112531 its reverse (135211251), we get a palindrome (287323782).

The spelling of 152112531 in words is "one hundred fifty-two million, one hundred twelve thousand, five hundred thirty-one".