1125135015 has 16 divisors (see below), whose sum is σ = 1830729600. Its totient is φ = 589900832.

The previous prime is 1125135001. The next prime is 1125135019. The reversal of 1125135015 is 5105315211.

It is a cyclic number.

It is not a de Polignac number, because 1125135015 - 2¹³ = 1125126823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125135019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634785 + ... + 636554.

It is an arithmetic number, because the mean of its divisors is an integer number (114420600).

Almost surely, 2^1125135015 is an apocalyptic number.

1125135015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1125135015 is a deficient number, since it is larger than the sum of its proper divisors (705594585).

1125135015 is a wasteful number, since it uses less digits than its factorization.

1125135015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271406.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1125135015 is about 33543.0322868998. The cubic root of 1125135015 is about 1040.0835161605.

The spelling of 1125135015 in words is "one billion, one hundred twenty-five million, one hundred thirty-five thousand, fifteen".