1195778345 has 8 divisors (see below), whose sum is σ = 1481222400. Its totient is φ = 925763760.

The previous prime is 1195778341. The next prime is 1195778347. The reversal of 1195778345 is 5438775911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1195778345 - 2² = 1195778341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1195778293 and 1195778302.

It is not an unprimeable number, because it can be changed into a prime (1195778341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3857195 + ... + 3857504.

It is an arithmetic number, because the mean of its divisors is an integer number (185152800).

Almost surely, 2^1195778345 is an apocalyptic number.

It is an amenable number.

1195778345 is a deficient number, since it is larger than the sum of its proper divisors (285444055).

1195778345 is an equidigital number, since it uses as much as digits as its factorization.

1195778345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714735.

The product of its digits is 1058400, while the sum is 50.

The square root of 1195778345 is about 34580.0281231812. The cubic root of 1195778345 is about 1061.4109444526.

The spelling of 1195778345 in words is "one billion, one hundred ninety-five million, seven hundred seventy-eight thousand, three hundred forty-five".