1491925 has 12 divisors (see below), whose sum is σ = 1874880. Its totient is φ = 1177520.

The previous prime is 1491913. The next prime is 1491929. The reversal of 1491925 is 5291941.

It is not a de Polignac number, because 1491925 - 2⁷ = 1491797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1716 + ... + 2434.

It is an arithmetic number, because the mean of its divisors is an integer number (156240).

2^1491925 is an apocalyptic number.

It is an amenable number.

1491925 is a deficient number, since it is larger than the sum of its proper divisors (382955).

1491925 is an equidigital number, since it uses as much as digits as its factorization.

1491925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 807 counting only the distinct ones).

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

The square root of 1491925 is about 1221.4438177829. The cubic root of 1491925 is about 114.2656419361.

The spelling of 1491925 in words is "one million, four hundred ninety-one thousand, nine hundred twenty-five".