1355061 has 8 divisors (see below), whose sum is σ = 1901920. Its totient is φ = 855792.

The previous prime is 1355047. The next prime is 1355063. The reversal of 1355061 is 1605531.

1355061 = 258² + 259² + ... + 276².

It is a happy number.

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

It is not a de Polignac number, because 1355061 - 2¹⁰ = 1354037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11830 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (237740).

2^1355061 is an apocalyptic number.

It is an amenable number.

1355061 is a deficient number, since it is larger than the sum of its proper divisors (546859).

1355061 is a wasteful number, since it uses less digits than its factorization.

1355061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23795.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1355061 is about 1164.0708741310. The cubic root of 1355061 is about 110.6588829786.

The spelling of 1355061 in words is "one million, three hundred fifty-five thousand, sixty-one".