1091339507 has 2 divisors, whose sum is σ = 1091339508. Its totient is φ = 1091339506.

The previous prime is 1091339503. The next prime is 1091339563. The reversal of 1091339507 is 7059331901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1091339507 - 2² = 1091339503 is a prime.

It is not a weakly prime, because it can be changed into another prime (1091339503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545669753 + 545669754.

It is an arithmetic number, because the mean of its divisors is an integer number (545669754).

Almost surely, 2^1091339507 is an apocalyptic number.

1091339507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091339507 is an equidigital number, since it uses as much as digits as its factorization.

1091339507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 1091339507 is about 33035.4280583739. The cubic root of 1091339507 is about 1029.5638669456.

The spelling of 1091339507 in words is "one billion, ninety-one million, three hundred thirty-nine thousand, five hundred seven".