1000125151155 has 32 divisors (see below), whose sum is σ = 1914769523520. Its totient is φ = 492369304320.

The previous prime is 1000125151117. The next prime is 1000125151171. The reversal of 1000125151155 is 5511515210001.

It is a happy number.

It is not a de Polignac number, because 1000125151155 - 2⁹ = 1000125150643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284934186 + ... + 284937695.

It is an arithmetic number, because the mean of its divisors is an integer number (59836547610).

Almost surely, 2^{1000125151155} is an apocalyptic number.

1000125151155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1000125151155 is a deficient number, since it is larger than the sum of its proper divisors (914644372365).

1000125151155 is a wasteful number, since it uses less digits than its factorization.

1000125151155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569871908 (or 569871902 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 27.

The spelling of 1000125151155 in words is "one trillion, one hundred twenty-five million, one hundred fifty-one thousand, one hundred fifty-five".