1355501 has 8 divisors (see below), whose sum is σ = 1587264. Its totient is φ = 1133280.

The previous prime is 1355483. The next prime is 1355503. The reversal of 1355501 is 1055531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1355501 - 2¹⁸ = 1093357 is a prime.

It is a super-2 number, since 2×1355501² = 3674765922002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2075 + ... + 2648.

It is an arithmetic number, because the mean of its divisors is an integer number (198408).

2^1355501 is an apocalyptic number.

It is an amenable number.

1355501 is a deficient number, since it is larger than the sum of its proper divisors (231763).

1355501 is an equidigital number, since it uses as much as digits as its factorization.

1355501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 1355501 is about 1164.2598507206. The cubic root of 1355501 is about 110.6708589806.

Subtracting from 1355501 its sum of digits (20), we obtain a triangular number (1355481 = T₁₆₄₆).

The spelling of 1355501 in words is "one million, three hundred fifty-five thousand, five hundred one".