152032213 has 4 divisors (see below), whose sum is σ = 152058348. Its totient is φ = 152006080.

The previous prime is 152032211. The next prime is 152032259. The reversal of 152032213 is 312230251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312230251 = 67 ⋅4660153.

It can be written as a sum of positive squares in 2 ways, for example, as 30547729 + 121484484 = 5527^2 + 11022^2 .

It is a cyclic number.

It is not a de Polignac number, because 152032213 - 2¹ = 152032211 is a prime.

It is a super-2 number, since 2×152032213² = 46227587579354738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152032211) 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, 45 + ... + 17437.

It is an arithmetic number, because the mean of its divisors is an integer number (38014587).

Almost surely, 2^152032213 is an apocalyptic number.

It is an amenable number.

152032213 is a deficient number, since it is larger than the sum of its proper divisors (26135).

152032213 is an equidigital number, since it uses as much as digits as its factorization.

152032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26134.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 152032213 is about 12330.1343463889. The cubic root of 152032213 is about 533.7180276175.

Adding to 152032213 its reverse (312230251), we get a palindrome (464262464).

It can be divided in two parts, 1520 and 32213, that added together give a palindrome (33733).

The spelling of 152032213 in words is "one hundred fifty-two million, thirty-two thousand, two hundred thirteen".