1091345514 has 32 divisors (see below), whose sum is σ = 2574974976. Its totient is φ = 301754160.

The previous prime is 1091345509. The next prime is 1091345527. The reversal of 1091345514 is 4155431901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417802 + ... + 420405.

It is an arithmetic number, because the mean of its divisors is an integer number (80467968).

Almost surely, 2^1091345514 is an apocalyptic number.

1091345514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1091345514 is an abundant number, since it is smaller than the sum of its proper divisors (1483629462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1091345514 is a wasteful number, since it uses less digits than its factorization.

1091345514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838250.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1091345514 is about 33035.5189757933. The cubic root of 1091345514 is about 1029.5657559327.

The spelling of 1091345514 in words is "one billion, ninety-one million, three hundred forty-five thousand, five hundred fourteen".