1355242 has 12 divisors (see below), whose sum is σ = 2364930. Its totient is φ = 580776.

The previous prime is 1355219. The next prime is 1355243. The reversal of 1355242 is 2425531.

It can be written as a sum of positive squares in only one way, i.e., 1301881 + 53361 = 1141^2 + 231^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1355243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6817 + ... + 7012.

2^1355242 is an apocalyptic number.

1355242 is a deficient number, since it is larger than the sum of its proper divisors (1009688).

1355242 is a wasteful number, since it uses less digits than its factorization.

1355242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13845 (or 13838 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 1355242 is about 1164.1486159421. The cubic root of 1355242 is about 110.6638097842.

It can be divided in two parts, 13 and 55242, that added together give a palindrome (55255).

The spelling of 1355242 in words is "one million, three hundred fifty-five thousand, two hundred forty-two".