3951255 has 48 divisors (see below), whose sum is σ = 7967232. Its totient is φ = 1636800.

The previous prime is 3951253. The next prime is 3951263. The reversal of 3951255 is 5521593.

It is not a de Polignac number, because 3951255 - 2¹ = 3951253 is a prime.

It is a super-2 number, since 2×3951255² = 31224832150050, which contains 22 as substring.

3951255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3951251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12550 + ... + 12860.

It is an arithmetic number, because the mean of its divisors is an integer number (165984).

Almost surely, 2^3951255 is an apocalyptic number.

3951255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3951255 is an abundant number, since it is smaller than the sum of its proper divisors (4015977).

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

3951255 is a wasteful number, since it uses less digits than its factorization.

3951255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 337 counting only the distinct ones).

The product of its digits is 6750, while the sum is 30.

The square root of 3951255 is about 1987.7763958756. The cubic root of 3951255 is about 158.0926524884.

The spelling of 3951255 in words is "three million, nine hundred fifty-one thousand, two hundred fifty-five".