3540081 has 4 divisors (see below), whose sum is σ = 4720112. Its totient is φ = 2360052.

The previous prime is 3540077. The next prime is 3540101. The reversal of 3540081 is 1800453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3540081 - 2² = 3540077 is a prime.

It is a super-2 number, since 2×3540081² = 25064346973122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3540041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590011 + ... + 590016.

It is an arithmetic number, because the mean of its divisors is an integer number (1180028).

Almost surely, 2^3540081 is an apocalyptic number.

It is an amenable number.

3540081 is a deficient number, since it is larger than the sum of its proper divisors (1180031).

3540081 is a wasteful number, since it uses less digits than its factorization.

3540081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180030.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 3540081 is about 1881.5102976067. The cubic root of 3540081 is about 152.4068193640.

The spelling of 3540081 in words is "three million, five hundred forty thousand, eighty-one".