152122213 has 4 divisors (see below), whose sum is σ = 152466048. Its totient is φ = 151778380.

The previous prime is 152122211. The next prime is 152122241. The reversal of 152122213 is 312221251.

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.

It is a cyclic number.

It is not a de Polignac number, because 152122213 - 2¹ = 152122211 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 (152122211) 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, 171253 + ... + 172138.

It is an arithmetic number, because the mean of its divisors is an integer number (38116512).

Almost surely, 2^152122213 is an apocalyptic number.

It is an amenable number.

152122213 is a deficient number, since it is larger than the sum of its proper divisors (343835).

152122213 is an equidigital number, since it uses as much as digits as its factorization.

152122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343834.

The product of its digits is 240, while the sum is 19.

The square root of 152122213 is about 12333.7834016980. The cubic root of 152122213 is about 533.8233236074.

Adding to 152122213 its reverse (312221251), we get a palindrome (464343464).

The spelling of 152122213 in words is "one hundred fifty-two million, one hundred twenty-two thousand, two hundred thirteen".