1369212856 has 16 divisors (see below), whose sum is σ = 2800662840. Its totient is φ = 622369440.

The previous prime is 1369212853. The next prime is 1369212881. The reversal of 1369212856 is 6582129631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369212853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7779531 + ... + 7779706.

Almost surely, 2^1369212856 is an apocalyptic number.

It is an amenable number.

1369212856 is an abundant number, since it is smaller than the sum of its proper divisors (1431449984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1369212856 is a wasteful number, since it uses less digits than its factorization.

1369212856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15559254 (or 15559250 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 1369212856 is about 37002.8763206322. The cubic root of 1369212856 is about 1110.4277917140.

The spelling of 1369212856 in words is "one billion, three hundred sixty-nine million, two hundred twelve thousand, eight hundred fifty-six".