152305531 has 8 divisors (see below), whose sum is σ = 174145280. Its totient is φ = 130486248.

The previous prime is 152305519. The next prime is 152305541. The reversal of 152305531 is 135503251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152305531 - 2¹⁹ = 151781243 is a prime.

It is a super-2 number, since 2×152305531² = 46393949546383922, 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 = 152305496 and 152305505.

It is not an unprimeable number, because it can be changed into a prime (152305541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17530 + ... + 24736.

It is an arithmetic number, because the mean of its divisors is an integer number (21768160).

Almost surely, 2^152305531 is an apocalyptic number.

152305531 is a deficient number, since it is larger than the sum of its proper divisors (21839749).

152305531 is an equidigital number, since it uses as much as digits as its factorization.

152305531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10233.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 152305531 is about 12341.2127037824. The cubic root of 152305531 is about 534.0376691200.

Adding to 152305531 its reverse (135503251), we get a palindrome (287808782).

The spelling of 152305531 in words is "one hundred fifty-two million, three hundred five thousand, five hundred thirty-one".