1601841971 has 8 divisors (see below), whose sum is σ = 1609052880. Its totient is φ = 1594641888.

The previous prime is 1601841929. The next prime is 1601841973. The reversal of 1601841971 is 1791481061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1601841971 - 2²⁶ = 1534733107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601841973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460025 + ... + 463493.

It is an arithmetic number, because the mean of its divisors is an integer number (201131610).

Almost surely, 2^1601841971 is an apocalyptic number.

1601841971 is a deficient number, since it is larger than the sum of its proper divisors (7210909).

1601841971 is a wasteful number, since it uses less digits than its factorization.

1601841971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 1601841971 is about 40023.0180146375. The cubic root of 1601841971 is about 1170.0557528160.

The spelling of 1601841971 in words is "one billion, six hundred one million, eight hundred forty-one thousand, nine hundred seventy-one".