155054 has 4 divisors (see below), whose sum is σ = 232584. Its totient is φ = 77526.

The previous prime is 155047. The next prime is 155069. The reversal of 155054 is 450551.

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

It is a congruent number.

It is an unprimeable number.

155054 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 38762 + ... + 38765.

It is an arithmetic number, because the mean of its divisors is an integer number (58146).

2¹⁵⁵⁰⁵⁴ is an apocalyptic number.

155054 is a deficient number, since it is larger than the sum of its proper divisors (77530).

155054 is an equidigital number, since it uses as much as digits as its factorization.

155054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77529.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 155054 is about 393.7689677971. The cubic root of 155054 is about 53.7230909114.

It can be divided in two parts, 1 and 55054, that added together give a palindrome (55055).

The spelling of 155054 in words is "one hundred fifty-five thousand, fifty-four".