1201278 has 16 divisors (see below), whose sum is σ = 2587536. Its totient is φ = 369600.

The previous prime is 1201261. The next prime is 1201283. The reversal of 1201278 is 8721021.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7623 + ... + 7778.

It is an arithmetic number, because the mean of its divisors is an integer number (161721).

2^1201278 is an apocalyptic number.

1201278 is an abundant number, since it is smaller than the sum of its proper divisors (1386258).

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

1201278 is a wasteful number, since it uses less digits than its factorization.

1201278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15419.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1201278 is about 1096.0282843066. The cubic root of 1201278 is about 106.3035679132.

Adding to 1201278 its reverse (8721021), we get a palindrome (9922299).

It can be divided in two parts, 12012 and 78, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 1201278 in words is "one million, two hundred one thousand, two hundred seventy-eight".