1925901 has 6 divisors (see below), whose sum is σ = 2781870. Its totient is φ = 1283928.

The previous prime is 1925899. The next prime is 1925909. The reversal of 1925901 is 1095291.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1887876 + 38025 = 1374^2 + 195^2 .

It is not a de Polignac number, because 1925901 - 2¹ = 1925899 is a prime.

1925901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106986 + ... + 107003.

It is an arithmetic number, because the mean of its divisors is an integer number (463645).

2^1925901 is an apocalyptic number.

It is an amenable number.

1925901 is a deficient number, since it is larger than the sum of its proper divisors (855969).

1925901 is a wasteful number, since it uses less digits than its factorization.

1925901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213995 (or 213992 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 1925901 is about 1387.7683524277. The cubic root of 1925901 is about 124.4165018104.

The spelling of 1925901 in words is "one million, nine hundred twenty-five thousand, nine hundred one".