1355523 has 8 divisors (see below), whose sum is σ = 1946448. Its totient is φ = 834144.

The previous prime is 1355513. The next prime is 1355533. The reversal of 1355523 is 3255531.

It is an interprime number because it is at equal distance from previous prime (1355513) and next prime (1355533).

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

It is not a de Polignac number, because 1355523 - 2⁴ = 1355507 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1355493 and 1355502.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17340 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (243306).

2^1355523 is an apocalyptic number.

1355523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1355523 is a deficient number, since it is larger than the sum of its proper divisors (590925).

1355523 is a wasteful number, since it uses less digits than its factorization.

1355523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34773.

The product of its digits is 2250, while the sum is 24.

The square root of 1355523 is about 1164.2692987449. The cubic root of 1355523 is about 110.6714577126.

The spelling of 1355523 in words is "one million, three hundred fifty-five thousand, five hundred twenty-three".