1355807 has 2 divisors, whose sum is σ = 1355808. Its totient is φ = 1355806.

The previous prime is 1355803. The next prime is 1355819. The reversal of 1355807 is 7085531.

It is a weak prime.

It is an emirp because it is prime and its reverse (7085531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1355807 - 2² = 1355803 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1355807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677903 + 677904.

It is an arithmetic number, because the mean of its divisors is an integer number (677904).

2^1355807 is an apocalyptic number.

1355807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355807 is an equidigital number, since it uses as much as digits as its factorization.

1355807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1355807 is about 1164.3912572671. The cubic root of 1355807 is about 110.6791862177.

The spelling of 1355807 in words is "one million, three hundred fifty-five thousand, eight hundred seven".