3153661 has 8 divisors (see below), whose sum is σ = 3720704. Its totient is φ = 2615760.

The previous prime is 3153649. The next prime is 3153671. The reversal of 3153661 is 1663513.

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

It is not a de Polignac number, because 3153661 - 2⁵ = 3153629 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 (3153641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7050 + ... + 7483.

It is an arithmetic number, because the mean of its divisors is an integer number (465088).

Almost surely, 2^3153661 is an apocalyptic number.

3153661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3153661 is a deficient number, since it is larger than the sum of its proper divisors (567043).

3153661 is a wasteful number, since it uses less digits than its factorization.

3153661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571.

The product of its digits is 1620, while the sum is 25.

The square root of 3153661 is about 1775.8550053425. The cubic root of 3153661 is about 146.6464888449.

It can be divided in two parts, 3 and 153661, that added together give a square (153664 = 392²).

The spelling of 3153661 in words is "three million, one hundred fifty-three thousand, six hundred sixty-one".