1343780901 has 32 divisors (see below), whose sum is σ = 2098790400. Its totient is φ = 848484720.

The previous prime is 1343780887. The next prime is 1343780927. The reversal of 1343780901 is 1090873431.

It is a happy number.

It is not a de Polignac number, because 1343780901 - 2¹⁹ = 1343256613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343780941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22260 + ... + 56418.

It is an arithmetic number, because the mean of its divisors is an integer number (65587200).

Almost surely, 2^1343780901 is an apocalyptic number.

It is an amenable number.

1343780901 is a deficient number, since it is larger than the sum of its proper divisors (755009499).

1343780901 is a wasteful number, since it uses less digits than its factorization.

1343780901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34246 (or 34240 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1343780901 is about 36657.6172302565. The cubic root of 1343780901 is about 1103.5096992847.

The spelling of 1343780901 in words is "one billion, three hundred forty-three million, seven hundred eighty thousand, nine hundred one".