1345553 has 4 divisors (see below), whose sum is σ = 1467888. Its totient is φ = 1223220.

The previous prime is 1345549. The next prime is 1345559. The reversal of 1345553 is 3555431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345553 - 2² = 1345549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61151 + ... + 61172.

It is an arithmetic number, because the mean of its divisors is an integer number (366972).

2^1345553 is an apocalyptic number.

It is an amenable number.

1345553 is a deficient number, since it is larger than the sum of its proper divisors (122335).

1345553 is a wasteful number, since it uses less digits than its factorization.

1345553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122334.

The product of its digits is 4500, while the sum is 26.

The square root of 1345553 is about 1159.9797412024. The cubic root of 1345553 is about 110.3994567379.

The spelling of 1345553 in words is "one million, three hundred forty-five thousand, five hundred fifty-three".