165152894 has 4 divisors (see below), whose sum is σ = 247729344. Its totient is φ = 82576446.

The previous prime is 165152873. The next prime is 165152899. The reversal of 165152894 is 498251561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498251561 = 31 ⋅16072631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165152899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41288222 + ... + 41288225.

It is an arithmetic number, because the mean of its divisors is an integer number (61932336).

Almost surely, 2^165152894 is an apocalyptic number.

165152894 is a deficient number, since it is larger than the sum of its proper divisors (82576450).

165152894 is an equidigital number, since it uses as much as digits as its factorization.

165152894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82576449.

The product of its digits is 86400, while the sum is 41.

The square root of 165152894 is about 12851.1825914972. The cubic root of 165152894 is about 548.6500158744.

It can be divided in two parts, 1651 and 52894, that added together give a palindrome (54545).

The spelling of 165152894 in words is "one hundred sixty-five million, one hundred fifty-two thousand, eight hundred ninety-four".