6121903 has 4 divisors (see below), whose sum is σ = 6135480. Its totient is φ = 6108328.

The previous prime is 6121897. The next prime is 6121919. The reversal of 6121903 is 3091216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6121903 - 2¹³ = 6113711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121943) 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, 6088 + ... + 7021.

It is an arithmetic number, because the mean of its divisors is an integer number (1533870).

Almost surely, 2^6121903 is an apocalyptic number.

6121903 is a deficient number, since it is larger than the sum of its proper divisors (13577).

6121903 is a wasteful number, since it uses less digits than its factorization.

6121903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13576.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 6121903 is about 2474.2479665547. The cubic root of 6121903 is about 182.9344425613.

The spelling of 6121903 in words is "six million, one hundred twenty-one thousand, nine hundred three".