155930 has 16 divisors (see below), whose sum is σ = 290304. Its totient is φ = 60240.

The previous prime is 155921. The next prime is 156007. The reversal of 155930 is 39551.

It is a junction number, because it is equal to n+sod(n) for n = 155896 and 155905.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 155930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59 + ... + 561.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2¹⁵⁵⁹³⁰ is an apocalyptic number.

155930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155930 is a deficient number, since it is larger than the sum of its proper divisors (134374).

155930 is a wasteful number, since it uses less digits than its factorization.

155930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 155930 is about 394.8797285250. The cubic root of 155930 is about 53.8240731025.

The spelling of 155930 in words is "one hundred fifty-five thousand, nine hundred thirty".