1355445 has 48 divisors (see below), whose sum is σ = 2900352. Its totient is φ = 570240.

The previous prime is 1355443. The next prime is 1355447. The reversal of 1355445 is 5445531.

It is an interprime number because it is at equal distance from previous prime (1355443) and next prime (1355447).

It is not a de Polignac number, because 1355445 - 2¹ = 1355443 is a prime.

It is a super-2 number, since 2×1355445² = 3674462296050, which contains 22 as substring.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3930 + ... + 4260.

It is an arithmetic number, because the mean of its divisors is an integer number (60424).

2^1355445 is an apocalyptic number.

1355445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1355445 is an abundant number, since it is smaller than the sum of its proper divisors (1544907).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1355445 is a wasteful number, since it uses less digits than its factorization.

1355445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 359 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 1355445 is about 1164.2358008582. The cubic root of 1355445 is about 110.6693349061.

The spelling of 1355445 in words is "one million, three hundred fifty-five thousand, four hundred forty-five".