155827841 has 4 divisors (see below), whose sum is σ = 167814612. Its totient is φ = 143841072.

The previous prime is 155827823. The next prime is 155827843. The reversal of 155827841 is 148728551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148728551 = 593 ⋅250807.

It can be written as a sum of positive squares in 2 ways, for example, as 25959025 + 129868816 = 5095^2 + 11396^2 .

It is a cyclic number.

It is not a de Polignac number, because 155827841 - 2²⁶ = 88718977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155827843) 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 in 3 ways as a sum of consecutive naturals, for example, 5993366 + ... + 5993391.

It is an arithmetic number, because the mean of its divisors is an integer number (41953653).

Almost surely, 2^155827841 is an apocalyptic number.

It is an amenable number.

155827841 is a deficient number, since it is larger than the sum of its proper divisors (11986771).

155827841 is a wasteful number, since it uses less digits than its factorization.

155827841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11986770.

The product of its digits is 89600, while the sum is 41.

The square root of 155827841 is about 12483.1022185993. The cubic root of 155827841 is about 538.1231608601.

The spelling of 155827841 in words is "one hundred fifty-five million, eight hundred twenty-seven thousand, eight hundred forty-one".