1125140615 has 4 divisors (see below), whose sum is σ = 1350168744. Its totient is φ = 900112488.

The previous prime is 1125140591. The next prime is 1125140641. The reversal of 1125140615 is 5160415211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125140615 - 2²⁸ = 856705159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112514057 + ... + 112514066.

It is an arithmetic number, because the mean of its divisors is an integer number (337542186).

Almost surely, 2^1125140615 is an apocalyptic number.

1125140615 is a deficient number, since it is larger than the sum of its proper divisors (225028129).

1125140615 is an equidigital number, since it uses as much as digits as its factorization.

1125140615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225028128.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1125140615 is about 33543.1157616582. The cubic root of 1125140615 is about 1040.0852417187.

Adding to 1125140615 its reverse (5160415211), we get a palindrome (6285555826).

The spelling of 1125140615 in words is "one billion, one hundred twenty-five million, one hundred forty thousand, six hundred fifteen".