1201355 has 4 divisors (see below), whose sum is σ = 1441632. Its totient is φ = 961080.

The previous prime is 1201337. The next prime is 1201381. The reversal of 1201355 is 5531021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1201355 - 2¹⁶ = 1135819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120131 + ... + 120140.

It is an arithmetic number, because the mean of its divisors is an integer number (360408).

2^1201355 is an apocalyptic number.

1201355 is a deficient number, since it is larger than the sum of its proper divisors (240277).

1201355 is an equidigital number, since it uses as much as digits as its factorization.

1201355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240276.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1201355 is about 1096.0634105744. The cubic root of 1201355 is about 106.3058391610.

Adding to 1201355 its reverse (5531021), we get a palindrome (6732376).

The spelling of 1201355 in words is "one million, two hundred one thousand, three hundred fifty-five".