1356840475 has 6 divisors (see below), whose sum is σ = 1682482220. Its totient is φ = 1085472360.

The previous prime is 1356840437. The next prime is 1356840481. The reversal of 1356840475 is 5740486531.

It is not a de Polignac number, because 1356840475 - 2⁹ = 1356839963 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27136785 + ... + 27136834.

Almost surely, 2^1356840475 is an apocalyptic number.

1356840475 is a deficient number, since it is larger than the sum of its proper divisors (325641745).

1356840475 is an equidigital number, since it uses as much as digits as its factorization.

1356840475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54273629 (or 54273624 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 1356840475 is about 36835.3155952274. The cubic root of 1356840475 is about 1107.0730111430.

The spelling of 1356840475 in words is "one billion, three hundred fifty-six million, eight hundred forty thousand, four hundred seventy-five".