1345545 has 16 divisors (see below), whose sum is σ = 2392320. Its totient is φ = 717552.

The previous prime is 1345541. The next prime is 1345549. The reversal of 1345545 is 5455431.

It is an interprime number because it is at equal distance from previous prime (1345541) and next prime (1345549).

It is not a de Polignac number, because 1345545 - 2² = 1345541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1345541) 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, 4849 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (149520).

2^1345545 is an apocalyptic number.

1345545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345545 is a deficient number, since it is larger than the sum of its proper divisors (1046775).

1345545 is an equidigital number, since it uses as much as digits as its factorization.

1345545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9981 (or 9975 counting only the distinct ones).

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

The square root of 1345545 is about 1159.9762928612. The cubic root of 1345545 is about 110.3992379437.

The spelling of 1345545 in words is "one million, three hundred forty-five thousand, five hundred forty-five".