1345245 has 32 divisors (see below), whose sum is σ = 2433024. Its totient is φ = 628800.

The previous prime is 1345243. The next prime is 1345271. The reversal of 1345245 is 5425431.

It is not a de Polignac number, because 1345245 - 2¹ = 1345243 is a prime.

It is a super-2 number, since 2×1345245² = 3619368220050, which contains 22 as substring.

It is a Curzon number.

1345245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345241) 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 31 ways as a sum of consecutive naturals, for example, 4984 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (76032).

2^1345245 is an apocalyptic number.

1345245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345245 is a deficient number, since it is larger than the sum of its proper divisors (1087779).

1345245 is a wasteful number, since it uses less digits than its factorization.

1345245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its digits is 2400, while the sum is 24.

The square root of 1345245 is about 1159.8469726649. The cubic root of 1345245 is about 110.3910325367.

The spelling of 1345245 in words is "one million, three hundred forty-five thousand, two hundred forty-five".