1128379507 has 2 divisors, whose sum is σ = 1128379508. Its totient is φ = 1128379506.

The previous prime is 1128379501. The next prime is 1128379529. The reversal of 1128379507 is 7059738211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128379507 is a prime.

It is not a weakly prime, because it can be changed into another prime (1128379501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564189753 + 564189754.

It is an arithmetic number, because the mean of its divisors is an integer number (564189754).

Almost surely, 2^1128379507 is an apocalyptic number.

1128379507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128379507 is an equidigital number, since it uses as much as digits as its factorization.

1128379507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 1128379507 is about 33591.3606006068. The cubic root of 1128379507 is about 1041.0823012325.

The spelling of 1128379507 in words is "one billion, one hundred twenty-eight million, three hundred seventy-nine thousand, five hundred seven".