1357845 has 8 divisors (see below), whose sum is σ = 2172576. Its totient is φ = 724176.

The previous prime is 1357843. The next prime is 1357871. The reversal of 1357845 is 5487531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1357845 - 2¹ = 1357843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45247 + ... + 45276.

It is an arithmetic number, because the mean of its divisors is an integer number (271572).

2^1357845 is an apocalyptic number.

1357845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1357845 is a deficient number, since it is larger than the sum of its proper divisors (814731).

1357845 is an equidigital number, since it uses as much as digits as its factorization.

1357845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90531.

The product of its digits is 16800, while the sum is 33.

The square root of 1357845 is about 1165.2660640386. The cubic root of 1357845 is about 110.7346147696.

The spelling of 1357845 in words is "one million, three hundred fifty-seven thousand, eight hundred forty-five".