152221161 has 8 divisors (see below), whose sum is σ = 207681760. Its totient is φ = 99120672.

The previous prime is 152221117. The next prime is 152221163. The reversal of 152221161 is 161122251.

152221161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152221161 - 2¹¹ = 152219113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152221163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589876 + ... + 590133.

It is an arithmetic number, because the mean of its divisors is an integer number (25960220).

Almost surely, 2^152221161 is an apocalyptic number.

It is an amenable number.

152221161 is a deficient number, since it is larger than the sum of its proper divisors (55460599).

152221161 is a wasteful number, since it uses less digits than its factorization.

152221161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180055.

The product of its digits is 240, while the sum is 21.

The square root of 152221161 is about 12337.7940086549. The cubic root of 152221161 is about 533.9390404400.

The spelling of 152221161 in words is "one hundred fifty-two million, two hundred twenty-one thousand, one hundred sixty-one".