3140261 has 4 divisors (see below), whose sum is σ = 3153024. Its totient is φ = 3127500.

The previous prime is 3140251. The next prime is 3140273. The reversal of 3140261 is 1620413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3140261 is a prime.

It is a super-2 number, since 2×3140261² = 19722478296242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140251) 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, 6005 + ... + 6506.

It is an arithmetic number, because the mean of its divisors is an integer number (788256).

Almost surely, 2^3140261 is an apocalyptic number.

It is an amenable number.

3140261 is a deficient number, since it is larger than the sum of its proper divisors (12763).

3140261 is a wasteful number, since it uses less digits than its factorization.

3140261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12762.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3140261 is about 1772.0781585472. The cubic root of 3140261 is about 146.4384921977.

Adding to 3140261 its reverse (1620413), we get a palindrome (4760674).

The spelling of 3140261 in words is "three million, one hundred forty thousand, two hundred sixty-one".