6121901 has 4 divisors (see below), whose sum is σ = 6161052. Its totient is φ = 6082752.

The previous prime is 6121897. The next prime is 6121919. The reversal of 6121901 is 1091216.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1716100 + 4405801 = 1310^2 + 2099^2 .

It is a cyclic number.

It is not a de Polignac number, because 6121901 - 2² = 6121897 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 (6121931) 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, 19340 + ... + 19653.

It is an arithmetic number, because the mean of its divisors is an integer number (1540263).

Almost surely, 2^6121901 is an apocalyptic number.

It is an amenable number.

6121901 is a deficient number, since it is larger than the sum of its proper divisors (39151).

6121901 is a wasteful number, since it uses less digits than its factorization.

6121901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39150.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 6121901 is about 2474.2475623914. The cubic root of 6121901 is about 182.9344226399.

The spelling of 6121901 in words is "six million, one hundred twenty-one thousand, nine hundred one".