1255150105140 has 48 divisors (see below), whose sum is σ = 3515137032960. Its totient is φ = 334638433920.

The previous prime is 1255150105127. The next prime is 1255150105163. The reversal of 1255150105140 is 415010515521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1255150105098 and 1255150105107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1836156 + ... + 2425235.

It is an arithmetic number, because the mean of its divisors is an integer number (73232021520).

Almost surely, 2^{1255150105140} is an apocalyptic number.

1255150105140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255150105140 is an abundant number, since it is smaller than the sum of its proper divisors (2259986927820).

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

1255150105140 is a wasteful number, since it uses less digits than its factorization.

1255150105140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266312 (or 4266310 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

The spelling of 1255150105140 in words is "one trillion, two hundred fifty-five billion, one hundred fifty million, one hundred five thousand, one hundred forty".