1245545 has 16 divisors (see below), whose sum is σ = 1799040. Its totient is φ = 808704.

The previous prime is 1245529. The next prime is 1245551. The reversal of 1245545 is 5455421.

It is a cyclic number.

It is not a de Polignac number, because 1245545 - 2⁴ = 1245529 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (112440).

2^1245545 is an apocalyptic number.

It is an amenable number.

1245545 is a deficient number, since it is larger than the sum of its proper divisors (553495).

1245545 is a wasteful number, since it uses less digits than its factorization.

1245545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904.

The product of its digits is 4000, while the sum is 26.

The square root of 1245545 is about 1116.0398738396. The cubic root of 1245545 is about 107.5936087468.

The spelling of 1245545 in words is "one million, two hundred forty-five thousand, five hundred forty-five".