152504213 has 4 divisors (see below), whose sum is σ = 152529408. Its totient is φ = 152479020.

The previous prime is 152504179. The next prime is 152504251. The reversal of 152504213 is 312405251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 312405251 = 23 ⋅13582837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152504213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152504293) 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 in 3 ways as a sum of consecutive naturals, for example, 2570 + ... + 17652.

It is an arithmetic number, because the mean of its divisors is an integer number (38132352).

Almost surely, 2^152504213 is an apocalyptic number.

It is an amenable number.

152504213 is a deficient number, since it is larger than the sum of its proper divisors (25195).

152504213 is a wasteful number, since it uses less digits than its factorization.

152504213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25194.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 152504213 is about 12349.2596134343. The cubic root of 152504213 is about 534.2697849371.

Adding to 152504213 its reverse (312405251), we get a palindrome (464909464).

The spelling of 152504213 in words is "one hundred fifty-two million, five hundred four thousand, two hundred thirteen".