155315273100 has 144 divisors (see below), whose sum is σ = 499558026240. Its totient is φ = 36998150400.

The previous prime is 155315273077. The next prime is 155315273101. The reversal of 155315273100 is 1372513551.

155315273100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155315273100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155315273101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 521430 + ... + 763229.

It is an arithmetic number, because the mean of its divisors is an integer number (3469152960).

Almost surely, 2^155315273100 is an apocalyptic number.

155315273100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155315273100 is an abundant number, since it is smaller than the sum of its proper divisors (344242753140).

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

155315273100 is a wasteful number, since it uses less digits than its factorization.

155315273100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284720 (or 1284713 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 33.

Adding to 155315273100 its reverse (1372513551), we get a palindrome (156687786651).

The spelling of 155315273100 in words is "one hundred fifty-five billion, three hundred fifteen million, two hundred seventy-three thousand, one hundred".