155630 has 16 divisors (see below), whose sum is σ = 285120. Its totient is φ = 61152.

The previous prime is 155627. The next prime is 155653. The reversal of 155630 is 36551.

155630 = T₂₄₇ + T₂₄₈ + ... + T₂₅₁.

It is a congruent number.

It is an unprimeable number.

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, 692 + ... + 888.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2¹⁵⁵⁶³⁰ is an apocalyptic number.

155630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 394×395.

155630 is a deficient number, since it is larger than the sum of its proper divisors (129490).

155630 is a wasteful number, since it uses less digits than its factorization.

155630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 155630 is about 394.4996831431. The cubic root of 155630 is about 53.7895328420.

The spelling of 155630 in words is "one hundred fifty-five thousand, six hundred thirty".