1835991345 has 16 divisors (see below), whose sum is σ = 2941424640. Its totient is φ = 977915904.

The previous prime is 1835991329. The next prime is 1835991349. The reversal of 1835991345 is 5431995381.

It is not a de Polignac number, because 1835991345 - 2⁴ = 1835991329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1835991294 and 1835991303.

It is not an unprimeable number, because it can be changed into a prime (1835991349) 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, 68049 + ... + 91118.

It is an arithmetic number, because the mean of its divisors is an integer number (183839040).

Almost surely, 2^1835991345 is an apocalyptic number.

1835991345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1835991345 is a deficient number, since it is larger than the sum of its proper divisors (1105433295).

1835991345 is a wasteful number, since it uses less digits than its factorization.

1835991345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159944.

The product of its digits is 583200, while the sum is 48.

The square root of 1835991345 is about 42848.4695759370. The cubic root of 1835991345 is about 1224.4946064586.

The spelling of 1835991345 in words is "one billion, eight hundred thirty-five million, nine hundred ninety-one thousand, three hundred forty-five".