1125015 has 16 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 595232.

The previous prime is 1125013. The next prime is 1125017. The reversal of 1125015 is 5105211.

1125015 = T₁₀ + T₁₁ + ... + T₁₈₈.

It is an interprime number because it is at equal distance from previous prime (1125013) and next prime (1125017).

It is a cyclic number.

It is not a de Polignac number, because 1125015 - 2¹ = 1125013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1124985 and 1125003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125013) 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, 2476 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^1125015 is an apocalyptic number.

1125015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1125015 is a deficient number, since it is larger than the sum of its proper divisors (689385).

1125015 is a wasteful number, since it uses less digits than its factorization.

1125015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1125015 is about 1060.6672428241. The cubic root of 1125015 is about 104.0046533914.

The spelling of 1125015 in words is "one million, one hundred twenty-five thousand, fifteen".