3145540 has 12 divisors (see below), whose sum is σ = 6605676. Its totient is φ = 1258208.

The previous prime is 3145529. The next prime is 3145547. The reversal of 3145540 is 455413.

It can be written as a sum of positive squares in 2 ways, for example, as 1855044 + 1290496 = 1362^2 + 1136^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145547) 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, 78619 + ... + 78658.

It is an arithmetic number, because the mean of its divisors is an integer number (550473).

Almost surely, 2^3145540 is an apocalyptic number.

It is an amenable number.

3145540 is an abundant number, since it is smaller than the sum of its proper divisors (3460136).

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

3145540 is a wasteful number, since it uses less digits than its factorization.

3145540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157286 (or 157284 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 3145540 is about 1773.5670272082. The cubic root of 3145540 is about 146.5205040667.

The spelling of 3145540 in words is "three million, one hundred forty-five thousand, five hundred forty".