1906051 has 8 divisors (see below), whose sum is σ = 2223200. Its totient is φ = 1633464.

The previous prime is 1906043. The next prime is 1906063. The reversal of 1906051 is 1506091.

It is not a de Polignac number, because 1906051 - 2³ = 1906043 is a prime.

1906051 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1909051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436 + ... + 3121.

It is an arithmetic number, because the mean of its divisors is an integer number (277900).

2^1906051 is an apocalyptic number.

1906051 is a deficient number, since it is larger than the sum of its proper divisors (317149).

1906051 is an frugal number, since it uses more digits than its factorization.

1906051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578 (or 5564 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 1906051 is about 1380.5980588136. The cubic root of 1906051 is about 123.9875767991.

It can be divided in two parts, 190 and 6051, that added together give a square (6241 = 79²).

The spelling of 1906051 in words is "one million, nine hundred six thousand, fifty-one".