155331030 has 16 divisors (see below), whose sum is σ = 372794544. Its totient is φ = 41421600.

The previous prime is 155331017. The next prime is 155331041. The reversal of 155331030 is 30133551.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155330988 and 155331006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2588821 + ... + 2588880.

It is an arithmetic number, because the mean of its divisors is an integer number (23299659).

Almost surely, 2^155331030 is an apocalyptic number.

155331030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155331030 is an abundant number, since it is smaller than the sum of its proper divisors (217463514).

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

155331030 is a wasteful number, since it uses less digits than its factorization.

155331030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177711.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 155331030 is about 12463.1869920980. The cubic root of 155331030 is about 537.5506698221.

Adding to 155331030 its reverse (30133551), we get a palindrome (185464581).

The spelling of 155331030 in words is "one hundred fifty-five million, three hundred thirty-one thousand, thirty".