1945725 has 12 divisors (see below), whose sum is σ = 3217056. Its totient is φ = 1037680.

The previous prime is 1945721. The next prime is 1945729. The reversal of 1945725 is 5275491.

It is an interprime number because it is at equal distance from previous prime (1945721) and next prime (1945729).

It is not a de Polignac number, because 1945725 - 2² = 1945721 is a prime.

It is a super-3 number, since 3×1945725³ = 22098644315333859375, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12897 + ... + 13046.

It is an arithmetic number, because the mean of its divisors is an integer number (268088).

2^1945725 is an apocalyptic number.

1945725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1945725 is a deficient number, since it is larger than the sum of its proper divisors (1271331).

1945725 is a wasteful number, since it uses less digits than its factorization.

1945725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25956 (or 25951 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 1945725 is about 1394.8924689739. The cubic root of 1945725 is about 124.8419335375.

The spelling of 1945725 in words is "one million, nine hundred forty-five thousand, seven hundred twenty-five".