1127864653 has 4 divisors (see below), whose sum is σ = 1129298560. Its totient is φ = 1126430748.

The previous prime is 1127864651. The next prime is 1127864659. The reversal of 1127864653 is 3564687211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3564687211 = 17 ⋅209687483.

It is a cyclic number.

It is not a de Polignac number, because 1127864653 - 2¹ = 1127864651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127864651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715773 + ... + 717346.

It is an arithmetic number, because the mean of its divisors is an integer number (282324640).

Almost surely, 2^1127864653 is an apocalyptic number.

It is an amenable number.

1127864653 is a deficient number, since it is larger than the sum of its proper divisors (1433907).

1127864653 is an equidigital number, since it uses as much as digits as its factorization.

1127864653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433906.

The product of its digits is 241920, while the sum is 43.

The square root of 1127864653 is about 33583.6962379069. The cubic root of 1127864653 is about 1040.9239363896.

The spelling of 1127864653 in words is "one billion, one hundred twenty-seven million, eight hundred sixty-four thousand, six hundred fifty-three".