1127811477 has 24 divisors (see below), whose sum is σ = 1659979552. Its totient is φ = 677070720.

The previous prime is 1127811449. The next prime is 1127811521. The reversal of 1127811477 is 7741187211.

It is not a de Polignac number, because 1127811477 - 2¹⁴ = 1127795093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127810477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56958 + ... + 74160.

Almost surely, 2^1127811477 is an apocalyptic number.

It is an amenable number.

1127811477 is a deficient number, since it is larger than the sum of its proper divisors (532168075).

1127811477 is a wasteful number, since it uses less digits than its factorization.

1127811477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17301 (or 17260 counting only the distinct ones).

The product of its digits is 21952, while the sum is 39.

The square root of 1127811477 is about 33582.9045348969. The cubic root of 1127811477 is about 1040.9075771450.

Adding to 1127811477 its reverse (7741187211), we get a palindrome (8868998688).

The spelling of 1127811477 in words is "one billion, one hundred twenty-seven million, eight hundred eleven thousand, four hundred seventy-seven".