1955445 has 8 divisors (see below), whose sum is σ = 3128736. Its totient is φ = 1042896.

The previous prime is 1955417. The next prime is 1955467. The reversal of 1955445 is 5445591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1955445 - 2⁶ = 1955381 is a prime.

1955445 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65167 + ... + 65196.

It is an arithmetic number, because the mean of its divisors is an integer number (391092).

2^1955445 is an apocalyptic number.

1955445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1955445 is a deficient number, since it is larger than the sum of its proper divisors (1173291).

1955445 is a wasteful number, since it uses less digits than its factorization.

1955445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130371.

The product of its digits is 18000, while the sum is 33.

The square root of 1955445 is about 1398.3722680317. The cubic root of 1955445 is about 125.0494737495.

The spelling of 1955445 in words is "one million, nine hundred fifty-five thousand, four hundred forty-five".