3135869 has 4 divisors (see below), whose sum is σ = 3420960. Its totient is φ = 2850780.

The previous prime is 3135859. The next prime is 3135877. The reversal of 3135869 is 9685313.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9685313 = 11 ⋅880483.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3135869 is a prime.

It is a super-2 number, since 2×3135869² = 19667348770322, 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 (3135809) 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, 142529 + ... + 142550.

It is an arithmetic number, because the mean of its divisors is an integer number (855240).

Almost surely, 2^3135869 is an apocalyptic number.

It is an amenable number.

3135869 is a deficient number, since it is larger than the sum of its proper divisors (285091).

3135869 is a wasteful number, since it uses less digits than its factorization.

3135869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285090.

The product of its digits is 19440, while the sum is 35.

The square root of 3135869 is about 1770.8385019532. The cubic root of 3135869 is about 146.3701902388.

It can be divided in two parts, 3135 and 869, that added together give a palindrome (4004).

The spelling of 3135869 in words is "three million, one hundred thirty-five thousand, eight hundred sixty-nine".