3601551 has 8 divisors (see below), whose sum is σ = 4913920. Its totient is φ = 2345112.

The previous prime is 3601541. The next prime is 3601553. The reversal of 3601551 is 1551063.

It is a happy number.

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

It is not a de Polignac number, because 3601551 - 2¹⁵ = 3568783 is a prime.

It is a Duffinian number.

3601551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3601553) 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, 13831 + ... + 14088.

It is an arithmetic number, because the mean of its divisors is an integer number (614240).

Almost surely, 2^3601551 is an apocalyptic number.

3601551 is a deficient number, since it is larger than the sum of its proper divisors (1312369).

3601551 is a wasteful number, since it uses less digits than its factorization.

3601551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27965.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 3601551 is about 1897.7752764751. The cubic root of 3601551 is about 153.2838934284.

The spelling of 3601551 in words is "three million, six hundred one thousand, five hundred fifty-one".