1127287725 has 12 divisors (see below), whose sum is σ = 1863782496. Its totient is φ = 601220080.

The previous prime is 1127287669. The next prime is 1127287757. The reversal of 1127287725 is 5277827211.

It is not a de Polignac number, because 1127287725 - 2¹⁵ = 1127254957 is a prime.

It is a super-2 number, since 2×1127287725² = 2541555229871351250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7515177 + ... + 7515326.

It is an arithmetic number, because the mean of its divisors is an integer number (155315208).

Almost surely, 2^1127287725 is an apocalyptic number.

1127287725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1127287725 is a deficient number, since it is larger than the sum of its proper divisors (736494771).

1127287725 is a wasteful number, since it uses less digits than its factorization.

1127287725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030516 (or 15030511 counting only the distinct ones).

The product of its digits is 109760, while the sum is 42.

The square root of 1127287725 is about 33575.1057332661. The cubic root of 1127287725 is about 1040.7464208255.

The spelling of 1127287725 in words is "one billion, one hundred twenty-seven million, two hundred eighty-seven thousand, seven hundred twenty-five".