1945953 has 6 divisors (see below), whose sum is σ = 2810834. Its totient is φ = 1297296.

The previous prime is 1945943. The next prime is 1945969. The reversal of 1945953 is 3595491.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 74529 = 1368^2 + 273^2 .

It is not a de Polignac number, because 1945953 - 2¹⁴ = 1929569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1945903) 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, 108100 + ... + 108117.

2^1945953 is an apocalyptic number.

It is an amenable number.

1945953 is a deficient number, since it is larger than the sum of its proper divisors (864881).

1945953 is a wasteful number, since it uses less digits than its factorization.

1945953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216223 (or 216220 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 1945953 is about 1394.9741933097. The cubic root of 1945953 is about 124.8468096718.

The spelling of 1945953 in words is "one million, nine hundred forty-five thousand, nine hundred fifty-three".