152849891 has 4 divisors (see below), whose sum is σ = 153071784. Its totient is φ = 152628000.

The previous prime is 152849867. The next prime is 152849897. The reversal of 152849891 is 198948251.

152849891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198948251 = 8263 ⋅24077.

It is a cyclic number.

It is not a de Polignac number, because 152849891 - 2¹⁴ = 152833507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152849897) 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, 109910 + ... + 111291.

It is an arithmetic number, because the mean of its divisors is an integer number (38267946).

Almost surely, 2^152849891 is an apocalyptic number.

152849891 is a deficient number, since it is larger than the sum of its proper divisors (221893).

152849891 is an equidigital number, since it uses as much as digits as its factorization.

152849891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221892.

The product of its digits is 207360, while the sum is 47.

The square root of 152849891 is about 12363.2475911469. The cubic root of 152849891 is about 534.6731529092.

The spelling of 152849891 in words is "one hundred fifty-two million, eight hundred forty-nine thousand, eight hundred ninety-one".