152216161 has 4 divisors (see below), whose sum is σ = 154488112. Its totient is φ = 149944212.

The previous prime is 152216153. The next prime is 152216171. The reversal of 152216161 is 161612251.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 161612251 = 17 ⋅9506603.

It is a cyclic number.

It is not a de Polignac number, because 152216161 - 2³ = 152216153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152216101) 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, 1135875 + ... + 1136008.

It is an arithmetic number, because the mean of its divisors is an integer number (38622028).

Almost surely, 2^152216161 is an apocalyptic number.

It is an amenable number.

152216161 is a deficient number, since it is larger than the sum of its proper divisors (2271951).

152216161 is an equidigital number, since it uses as much as digits as its factorization.

152216161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271950.

The product of its digits is 720, while the sum is 25.

The square root of 152216161 is about 12337.5913775745. The cubic root of 152216161 is about 533.9331942873.

The spelling of 152216161 in words is "one hundred fifty-two million, two hundred sixteen thousand, one hundred sixty-one".