155206030 has 48 divisors (see below), whose sum is σ = 329510160. Its totient is φ = 52472448.

The previous prime is 155206019. The next prime is 155206063. The reversal of 155206030 is 30602551.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 155205992 and 155206010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33601 + ... + 37939.

It is an arithmetic number, because the mean of its divisors is an integer number (6864795).

Almost surely, 2^155206030 is an apocalyptic number.

155206030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155206030 is an abundant number, since it is smaller than the sum of its proper divisors (174304130).

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

155206030 is a wasteful number, since it uses less digits than its factorization.

155206030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433 (or 4426 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 155206030 is about 12458.1712141068. The cubic root of 155206030 is about 537.4064362109.

Adding to 155206030 its reverse (30602551), we get a palindrome (185808581).

The spelling of 155206030 in words is "one hundred fifty-five million, two hundred six thousand, thirty".