1945485 has 16 divisors (see below), whose sum is σ = 3458880. Its totient is φ = 1037520.

The previous prime is 1945483. The next prime is 1945487. The reversal of 1945485 is 5845491.

It is an interprime number because it is at equal distance from previous prime (1945483) and next prime (1945487).

It is not a de Polignac number, because 1945485 - 2¹ = 1945483 is a prime.

It is an Ulam number.

1945485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7071 + ... + 7340.

It is an arithmetic number, because the mean of its divisors is an integer number (216180).

2^1945485 is an apocalyptic number.

1945485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1945485 is a deficient number, since it is larger than the sum of its proper divisors (1513395).

1945485 is a wasteful number, since it uses less digits than its factorization.

1945485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14425 (or 14419 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1945485 is about 1394.8064381842. The cubic root of 1945485 is about 124.8368003531.

The spelling of 1945485 in words is "one million, nine hundred forty-five thousand, four hundred eighty-five".