78001201 has 4 divisors (see below), whose sum is σ = 78023412. Its totient is φ = 77978992.

The previous prime is 78001141. The next prime is 78001207. The reversal of 78001201 is 10210087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10210087 = 19 ⋅537373.

It can be written as a sum of positive squares in 2 ways, for example, as 56610576 + 21390625 = 7524^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 78001201 - 2¹¹ = 77999153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78001207) 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 3 ways as a sum of consecutive naturals, for example, 4546 + ... + 13291.

It is an arithmetic number, because the mean of its divisors is an integer number (19505853).

Almost surely, 2^78001201 is an apocalyptic number.

It is an amenable number.

78001201 is a deficient number, since it is larger than the sum of its proper divisors (22211).

78001201 is a wasteful number, since it uses less digits than its factorization.

78001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22210.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 78001201 is about 8831.8288593020. The cubic root of 78001201 is about 427.2680610915.

Adding to 78001201 its reverse (10210087), we get a palindrome (88211288).

The spelling of 78001201 in words is "seventy-eight million, one thousand, two hundred one".