1356240202 has 4 divisors (see below), whose sum is σ = 2034360306. Its totient is φ = 678120100.

The previous prime is 1356240191. The next prime is 1356240203. The reversal of 1356240202 is 2020426531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2020426531 = 2437 ⋅829063.

It can be written as a sum of positive squares in only one way, i.e., 802532241 + 553707961 = 28329^2 + 23531^2 .

It is not an unprimeable number, because it can be changed into a prime (1356240203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339060049 + ... + 339060052.

Almost surely, 2^1356240202 is an apocalyptic number.

1356240202 is a deficient number, since it is larger than the sum of its proper divisors (678120104).

1356240202 is an equidigital number, since it uses as much as digits as its factorization.

1356240202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678120103.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1356240202 is about 36827.1666300844. The cubic root of 1356240202 is about 1106.9097288527.

Adding to 1356240202 its reverse (2020426531), we get a palindrome (3376666733).

The spelling of 1356240202 in words is "one billion, three hundred fifty-six million, two hundred forty thousand, two hundred two".