3155000 has 40 divisors (see below), whose sum is σ = 7403880. Its totient is φ = 1260000.

The previous prime is 3154999. The next prime is 3155003. The reversal of 3155000 is 5513.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4685 + ... + 5315.

It is an arithmetic number, because the mean of its divisors is an integer number (185097).

Almost surely, 2^3155000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3701940).

3155000 is an abundant number, since it is smaller than the sum of its proper divisors (4248880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3155000 is an equidigital number, since it uses as much as digits as its factorization.

3155000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 3155000 is about 1776.2319668332. The cubic root of 3155000 is about 146.6672405854.

The spelling of 3155000 in words is "three million, one hundred fifty-five thousand".