155081276 has 96 divisors (see below), whose sum is σ = 343728000. Its totient is φ = 60963840.

The previous prime is 155081257. The next prime is 155081279. The reversal of 155081276 is 672180551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155081279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1422710 + ... + 1422818.

It is an arithmetic number, because the mean of its divisors is an integer number (3580500).

Almost surely, 2^155081276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155081276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171864000).

155081276 is an abundant number, since it is smaller than the sum of its proper divisors (188646724).

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

155081276 is a wasteful number, since it uses less digits than its factorization.

155081276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 155081276 is about 12453.1632929148. The cubic root of 155081276 is about 537.2624092173.

The spelling of 155081276 in words is "one hundred fifty-five million, eighty-one thousand, two hundred seventy-six".