1355201 has 4 divisors (see below), whose sum is σ = 1358592. Its totient is φ = 1351812.

The previous prime is 1355191. The next prime is 1355219. The reversal of 1355201 is 1025531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1025531 = 13 ⋅78887.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355201 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1355201.

It is not an unprimeable number, because it can be changed into a prime (1355261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (339648).

2^1355201 is an apocalyptic number.

It is an amenable number.

1355201 is a deficient number, since it is larger than the sum of its proper divisors (3391).

1355201 is an equidigital number, since it uses as much as digits as its factorization.

1355201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390.

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

The square root of 1355201 is about 1164.1310063734. The cubic root of 1355201 is about 110.6626938059.

The spelling of 1355201 in words is "one million, three hundred fifty-five thousand, two hundred one".