155827842 has 16 divisors (see below), whose sum is σ = 318287232. Its totient is φ = 50837360.

The previous prime is 155827823. The next prime is 155827843. The reversal of 155827842 is 248728551.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 155827794 and 155827803.

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 7 ways as a sum of consecutive naturals, for example, 276009 + ... + 276572.

It is an arithmetic number, because the mean of its divisors is an integer number (19892952).

Almost surely, 2^155827842 is an apocalyptic number.

155827842 is an abundant number, since it is smaller than the sum of its proper divisors (162459390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155827842 is a wasteful number, since it uses less digits than its factorization.

155827842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552633.

The product of its digits is 179200, while the sum is 42.

The square root of 155827842 is about 12483.1022586535. The cubic root of 155827842 is about 538.1231620113.

The spelling of 155827842 in words is "one hundred fifty-five million, eight hundred twenty-seven thousand, eight hundred forty-two".