1850104121 has 4 divisors (see below), whose sum is σ = 1850193792. Its totient is φ = 1850014452.

The previous prime is 1850104117. The next prime is 1850104127. The reversal of 1850104121 is 1214010581.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1850104121 - 2² = 1850104117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1850104127) 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, 3440 + ... + 60926.

It is an arithmetic number, because the mean of its divisors is an integer number (462548448).

Almost surely, 2^1850104121 is an apocalyptic number.

It is an amenable number.

1850104121 is a deficient number, since it is larger than the sum of its proper divisors (89671).

1850104121 is an equidigital number, since it uses as much as digits as its factorization.

1850104121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89670.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 1850104121 is about 43012.8367002224. The cubic root of 1850104121 is about 1227.6240562189.

The spelling of 1850104121 in words is "one billion, eight hundred fifty million, one hundred four thousand, one hundred twenty-one".