1075121715 has 16 divisors (see below), whose sum is σ = 1726596000. Its totient is φ = 571264512.

The previous prime is 1075121699. The next prime is 1075121717. The reversal of 1075121715 is 5171215701.

It is not a de Polignac number, because 1075121715 - 2⁴ = 1075121699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1075121717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129190 + ... + 137259.

It is an arithmetic number, because the mean of its divisors is an integer number (107912250).

Almost surely, 2^1075121715 is an apocalyptic number.

1075121715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1075121715 is a deficient number, since it is larger than the sum of its proper divisors (651474285).

1075121715 is a wasteful number, since it uses less digits than its factorization.

1075121715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266726.

The product of its (nonzero) digits is 2450, while the sum is 30.

The square root of 1075121715 is about 32789.0487053223. The cubic root of 1075121715 is about 1024.4384677606.

The spelling of 1075121715 in words is "one billion, seventy-five million, one hundred twenty-one thousand, seven hundred fifteen".