1201796078 has 32 divisors (see below), whose sum is σ = 2116038144. Its totient is φ = 501191712.

The previous prime is 1201796077. The next prime is 1201796083. The reversal of 1201796078 is 8706971021.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201796077) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 163151 + ... + 170357.

It is an arithmetic number, because the mean of its divisors is an integer number (66126192).

Almost surely, 2^1201796078 is an apocalyptic number.

1201796078 is a deficient number, since it is larger than the sum of its proper divisors (914242066).

1201796078 is a wasteful number, since it uses less digits than its factorization.

1201796078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 1201796078 is about 34666.9306111747. The cubic root of 1201796078 is about 1063.1884764713.

The spelling of 1201796078 in words is "one billion, two hundred one million, seven hundred ninety-six thousand, seventy-eight".