3501261 has 6 divisors (see below), whose sum is σ = 5057390. Its totient is φ = 2334168.

The previous prime is 3501259. The next prime is 3501283. The reversal of 3501261 is 1621053.

It can be written as a sum of positive squares in only one way, i.e., 3493161 + 8100 = 1869^2 + 90^2 .

It is not a de Polignac number, because 3501261 - 2¹ = 3501259 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3501961) 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 5 ways as a sum of consecutive naturals, for example, 194506 + ... + 194523.

Almost surely, 2^3501261 is an apocalyptic number.

It is an amenable number.

3501261 is a deficient number, since it is larger than the sum of its proper divisors (1556129).

3501261 is a wasteful number, since it uses less digits than its factorization.

3501261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389035 (or 389032 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 3501261 is about 1871.1656794629. The cubic root of 3501261 is about 151.8476803982.

It can be divided in two parts, 3 and 501261, that added together give a square (501264 = 708²).

The spelling of 3501261 in words is "three million, five hundred one thousand, two hundred sixty-one".