1925149 has 2 divisors, whose sum is σ = 1925150. Its totient is φ = 1925148.

The previous prime is 1925129. The next prime is 1925171. The reversal of 1925149 is 9415291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 822649 = 1050^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 1925149 - 2⁵ = 1925117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1925149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1925129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962574 + 962575.

It is an arithmetic number, because the mean of its divisors is an integer number (962575).

2^1925149 is an apocalyptic number.

It is an amenable number.

1925149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925149 is an equidigital number, since it uses as much as digits as its factorization.

1925149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 31.

The square root of 1925149 is about 1387.4973873849. The cubic root of 1925149 is about 124.4003062064.

The spelling of 1925149 in words is "one million, nine hundred twenty-five thousand, one hundred forty-nine".