152503531 has 2 divisors, whose sum is σ = 152503532. Its totient is φ = 152503530.

The previous prime is 152503523. The next prime is 152503553. The reversal of 152503531 is 135305251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 152503531 - 2³ = 152503523 is a prime.

It is a super-2 number, since 2×152503531² = 46514653934935922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 152503496 and 152503505.

It is not a weakly prime, because it can be changed into another prime (152503511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76251765 + 76251766.

It is an arithmetic number, because the mean of its divisors is an integer number (76251766).

Almost surely, 2^152503531 is an apocalyptic number.

152503531 is a deficient number, since it is larger than the sum of its proper divisors (1).

152503531 is an equidigital number, since it uses as much as digits as its factorization.

152503531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 152503531 is about 12349.2320004120. The cubic root of 152503531 is about 534.2689885164.

Adding to 152503531 its reverse (135305251), we get a palindrome (287808782).

It can be divided in two parts, 15250 and 3531, that added together give a palindrome (18781).

The spelling of 152503531 in words is "one hundred fifty-two million, five hundred three thousand, five hundred thirty-one".