1354928091 has 16 divisors (see below), whose sum is σ = 2056492800. Its totient is φ = 785465120.

The previous prime is 1354928089. The next prime is 1354928117. The reversal of 1354928091 is 1908294531.

It is not a de Polignac number, because 1354928091 - 2¹ = 1354928089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1354928011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891816 + ... + 893333.

It is an arithmetic number, because the mean of its divisors is an integer number (128530800).

Almost surely, 2^1354928091 is an apocalyptic number.

1354928091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1354928091 is a deficient number, since it is larger than the sum of its proper divisors (701564709).

1354928091 is a wasteful number, since it uses less digits than its factorization.

1354928091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785186.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1354928091 is about 36809.3478752341. The cubic root of 1354928091 is about 1106.5526492690.

The spelling of 1354928091 in words is "one billion, three hundred fifty-four million, nine hundred twenty-eight thousand, ninety-one".