1206871401 has 8 divisors (see below), whose sum is σ = 1609598080. Its totient is φ = 804362832.

The previous prime is 1206871363. The next prime is 1206871409. The reversal of 1206871401 is 1041786021.

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

It is not a de Polignac number, because 1206871401 - 2⁷ = 1206871273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206871409) 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 7 ways as a sum of consecutive naturals, for example, 41146 + ... + 64083.

It is an arithmetic number, because the mean of its divisors is an integer number (201199760).

Almost surely, 2^1206871401 is an apocalyptic number.

It is an amenable number.

1206871401 is a deficient number, since it is larger than the sum of its proper divisors (402726679).

1206871401 is a wasteful number, since it uses less digits than its factorization.

1206871401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109055.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1206871401 is about 34740.0547063473. The cubic root of 1206871401 is about 1064.6830302720.

The spelling of 1206871401 in words is "one billion, two hundred six million, eight hundred seventy-one thousand, four hundred one".