1199601956 has 12 divisors (see below), whose sum is σ = 2399203968. Its totient is φ = 514115112.

The previous prime is 1199601937. The next prime is 1199601959. The reversal of 1199601956 is 6591069911.

1199601956 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1199601956.

It is not an unprimeable number, because it can be changed into a prime (1199601959) 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, 21421436 + ... + 21421491.

It is an arithmetic number, because the mean of its divisors is an integer number (199933664).

Almost surely, 2^1199601956 is an apocalyptic number.

It is an amenable number.

1199601956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1199601956 is a wasteful number, since it uses less digits than its factorization.

1199601956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42842938 (or 42842936 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 47.

The square root of 1199601956 is about 34635.2704046035. The cubic root of 1199601956 is about 1062.5410603924.

The spelling of 1199601956 in words is "one billion, one hundred ninety-nine million, six hundred one thousand, nine hundred fifty-six".