6121869 has 8 divisors (see below), whose sum is σ = 8790432. Its totient is φ = 3767280.

The previous prime is 6121861. The next prime is 6121873. The reversal of 6121869 is 9681216.

6121869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6121869 - 2³ = 6121861 is a prime.

It is a super-2 number, since 2×6121869² = 74954560106322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121861) 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 7 ways as a sum of consecutive naturals, for example, 78447 + ... + 78524.

It is an arithmetic number, because the mean of its divisors is an integer number (1098804).

Almost surely, 2^6121869 is an apocalyptic number.

It is an amenable number.

6121869 is a deficient number, since it is larger than the sum of its proper divisors (2668563).

6121869 is a wasteful number, since it uses less digits than its factorization.

6121869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156987.

The product of its digits is 5184, while the sum is 33.

The square root of 6121869 is about 2474.2410957706. The cubic root of 6121869 is about 182.9341038984.

It can be divided in two parts, 612 and 1869, that multiplied together give a triangular number (1143828 = T₁₅₁₂).

The spelling of 6121869 in words is "six million, one hundred twenty-one thousand, eight hundred sixty-nine".