1127957945 has 8 divisors (see below), whose sum is σ = 1353752136. Its totient is φ = 902231296.

The previous prime is 1127957923. The next prime is 1127957947. The reversal of 1127957945 is 5497597211.

It can be written as a sum of positive squares in 4 ways, for example, as 55591936 + 1072366009 = 7456^2 + 32747^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1127957945 - 2⁸ = 1127957689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1127957893 and 1127957902.

It is not an unprimeable number, because it can be changed into a prime (1127957947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33569 + ... + 58161.

It is an arithmetic number, because the mean of its divisors is an integer number (169219017).

Almost surely, 2^1127957945 is an apocalyptic number.

It is an amenable number.

1127957945 is a deficient number, since it is larger than the sum of its proper divisors (225794191).

1127957945 is an equidigital number, since it uses as much as digits as its factorization.

1127957945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33771.

The product of its digits is 793800, while the sum is 50.

The square root of 1127957945 is about 33585.0851569562. The cubic root of 1127957945 is about 1040.9526358138.

The spelling of 1127957945 in words is "one billion, one hundred twenty-seven million, nine hundred fifty-seven thousand, nine hundred forty-five".