1641541 has 8 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 1472640.

The previous prime is 1641539. The next prime is 1641559. The reversal of 1641541 is 1451461.

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 1641541 - 2¹ = 1641539 is a prime.

It is a Duffinian number.

1641541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

2^1641541 is an apocalyptic number.

1641541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1641541 is a deficient number, since it is larger than the sum of its proper divisors (172859).

1641541 is a wasteful number, since it uses less digits than its factorization.

1641541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its digits is 480, while the sum is 22.

The square root of 1641541 is about 1281.2263656357. The cubic root of 1641541 is about 117.9642954314.

The spelling of 1641541 in words is "one million, six hundred forty-one thousand, five hundred forty-one".