1127740045 has 4 divisors (see below), whose sum is σ = 1353288060. Its totient is φ = 902192032.

The previous prime is 1127740039. The next prime is 1127740049. The reversal of 1127740045 is 5400477211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5400477211 = 23 ⋅234803357.

It can be written as a sum of positive squares in 2 ways, for example, as 122279364 + 1005460681 = 11058^2 + 31709^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127740045 - 2³ = 1127740037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1127739989 and 1127740016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127740049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112774000 + ... + 112774009.

It is an arithmetic number, because the mean of its divisors is an integer number (338322015).

Almost surely, 2^1127740045 is an apocalyptic number.

It is an amenable number.

1127740045 is a deficient number, since it is larger than the sum of its proper divisors (225548015).

1127740045 is an equidigital number, since it uses as much as digits as its factorization.

1127740045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225548014.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1127740045 is about 33581.8410007552. The cubic root of 1127740045 is about 1040.8856007534.

The spelling of 1127740045 in words is "one billion, one hundred twenty-seven million, seven hundred forty thousand, forty-five".