1250138775015 has 24 divisors (see below), whose sum is σ = 2333592381120. Its totient is φ = 615452935104.

The previous prime is 1250138775013. The next prime is 1250138775047. The reversal of 1250138775015 is 5105778310521.

1250138775015 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 138 + 7 + 7 + 501 + 5 = 666.

It is not a de Polignac number, because 1250138775015 - 2¹ = 1250138775013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250138775013) 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, 1068494095 + ... + 1068495264.

It is an arithmetic number, because the mean of its divisors is an integer number (97233015880).

Almost surely, 2^{1250138775015} is an apocalyptic number.

1250138775015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1250138775015 is a deficient number, since it is larger than the sum of its proper divisors (1083453606105).

1250138775015 is a wasteful number, since it uses less digits than its factorization.

1250138775015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136989383 (or 2136989380 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 45.

The spelling of 1250138775015 in words is "one trillion, two hundred fifty billion, one hundred thirty-eight million, seven hundred seventy-five thousand, fifteen".