1125615 has 8 divisors (see below), whose sum is σ = 1801008. Its totient is φ = 600320.

The previous prime is 1125599. The next prime is 1125629. The reversal of 1125615 is 5165211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1125615 - 2⁴ = 1125599 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1125591 and 1125600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37506 + ... + 37535.

It is an arithmetic number, because the mean of its divisors is an integer number (225126).

2^1125615 is an apocalyptic number.

1125615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1125615 is a deficient number, since it is larger than the sum of its proper divisors (675393).

1125615 is an equidigital number, since it uses as much as digits as its factorization.

1125615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75049.

The product of its digits is 300, while the sum is 21.

The square root of 1125615 is about 1060.9500459494. The cubic root of 1125615 is about 104.0231395750.

The spelling of 1125615 in words is "one million, one hundred twenty-five thousand, six hundred fifteen".