2101541 has 8 divisors (see below), whose sum is σ = 2281440. Its totient is φ = 1924272.

The previous prime is 2101531. The next prime is 2101549. The reversal of 2101541 is 1451012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101549) 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, 1226 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (285180).

2^2101541 is an apocalyptic number.

It is an amenable number.

2101541 is a deficient number, since it is larger than the sum of its proper divisors (179899).

2101541 is a wasteful number, since it uses less digits than its factorization.

2101541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 2101541 is about 1449.6692726274. The cubic root of 2101541 is about 128.0892322130.

Adding to 2101541 its reverse (1451012), we get a palindrome (3552553).

It can be divided in two parts, 210 and 1541, that multiplied together give a triangular number (323610 = T₈₀₄).

The spelling of 2101541 in words is "two million, one hundred one thousand, five hundred forty-one".