155250120130 has 48 divisors (see below), whose sum is σ = 326971923264. Its totient is φ = 51990694560.

The previous prime is 155250120079. The next prime is 155250120131. The reversal of 155250120130 is 31021052551.

It is a junction number, because it is equal to n+sod(n) for n = 155250120095 and 155250120104.

It is not an unprimeable number, because it can be changed into a prime (155250120131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470316 + ... + 729175.

It is an arithmetic number, because the mean of its divisors is an integer number (6811915068).

Almost surely, 2^155250120130 is an apocalyptic number.

155250120130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155250120130 is an abundant number, since it is smaller than the sum of its proper divisors (171721803134).

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

155250120130 is a wasteful number, since it uses less digits than its factorization.

155250120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199591 (or 1199548 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 155250120130 its reverse (31021052551), we get a palindrome (186271172681).

The spelling of 155250120130 in words is "one hundred fifty-five billion, two hundred fifty million, one hundred twenty thousand, one hundred thirty".