155839845 has 48 divisors (see below), whose sum is σ = 292204800. Its totient is φ = 70713216.

The previous prime is 155839837. The next prime is 155839897. The reversal of 155839845 is 548938551.

It is a happy number.

It is not a de Polignac number, because 155839845 - 2³ = 155839837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155839794 and 155839803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108804 + ... + 110226.

It is an arithmetic number, because the mean of its divisors is an integer number (6087600).

Almost surely, 2^155839845 is an apocalyptic number.

155839845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155839845 is a deficient number, since it is larger than the sum of its proper divisors (136364955).

155839845 is a wasteful number, since it uses less digits than its factorization.

155839845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594 (or 1587 counting only the distinct ones).

The product of its digits is 864000, while the sum is 48.

The square root of 155839845 is about 12483.5830193098. The cubic root of 155839845 is about 538.1369783836.

The spelling of 155839845 in words is "one hundred fifty-five million, eight hundred thirty-nine thousand, eight hundred forty-five".