3145555 has 24 divisors (see below), whose sum is σ = 4522608. Its totient is φ = 2092608.

The previous prime is 3145553. The next prime is 3145559. The reversal of 3145555 is 5555413.

It is not a de Polignac number, because 3145555 - 2¹ = 3145553 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8892 + ... + 9238.

It is an arithmetic number, because the mean of its divisors is an integer number (188442).

Almost surely, 2^3145555 is an apocalyptic number.

3145555 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3145555 is a deficient number, since it is larger than the sum of its proper divisors (1377053).

3145555 is a wasteful number, since it uses less digits than its factorization.

3145555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 396 counting only the distinct ones).

The product of its digits is 7500, while the sum is 28.

The square root of 3145555 is about 1773.5712559692. The cubic root of 3145555 is about 146.5207369683.

The spelling of 3145555 in words is "three million, one hundred forty-five thousand, five hundred fifty-five".