1901083399 has 6 divisors (see below), whose sum is σ = 2006406960. Its totient is φ = 1801026036.

The previous prime is 1901083369. The next prime is 1901083439. The reversal of 1901083399 is 9933801091.

It is not a de Polignac number, because 1901083399 - 2¹⁷ = 1900952327 is a prime.

It is a super-2 number, since 2×1901083399² = 7228236179906786402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901083319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2632719 + ... + 2633440.

It is an arithmetic number, because the mean of its divisors is an integer number (334401160).

Almost surely, 2^1901083399 is an apocalyptic number.

1901083399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1901083399 is a deficient number, since it is larger than the sum of its proper divisors (105323561).

1901083399 is an equidigital number, since it uses as much as digits as its factorization.

1901083399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266197 (or 5266178 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 1901083399 is about 43601.4151031821. The cubic root of 1901083399 is about 1238.7976984413.

The spelling of 1901083399 in words is "one billion, nine hundred one million, eighty-three thousand, three hundred ninety-nine".