155844851 has 4 divisors (see below), whose sum is σ = 160056912. Its totient is φ = 151632792.

The previous prime is 155844833. The next prime is 155844863. The reversal of 155844851 is 158448551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155844851 - 2¹⁰ = 155843827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155844799 and 155844808.

It is not an unprimeable number, because it can be changed into a prime (155804851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105975 + ... + 2106048.

It is an arithmetic number, because the mean of its divisors is an integer number (40014228).

Almost surely, 2^155844851 is an apocalyptic number.

155844851 is a deficient number, since it is larger than the sum of its proper divisors (4212061).

155844851 is an equidigital number, since it uses as much as digits as its factorization.

155844851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212060.

The product of its digits is 128000, while the sum is 41.

The square root of 155844851 is about 12483.7835210324. The cubic root of 155844851 is about 538.1427404634.

The spelling of 155844851 in words is "one hundred fifty-five million, eight hundred forty-four thousand, eight hundred fifty-one".