1400206161 has 8 divisors (see below), whose sum is σ = 1874206944. Its totient is φ = 929838080.

The previous prime is 1400206147. The next prime is 1400206163. The reversal of 1400206161 is 1616020041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400206161 - 2⁶ = 1400206097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1400206163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907275 + ... + 908816.

It is an arithmetic number, because the mean of its divisors is an integer number (234275868).

Almost surely, 2^1400206161 is an apocalyptic number.

It is an amenable number.

1400206161 is a deficient number, since it is larger than the sum of its proper divisors (474000783).

1400206161 is a wasteful number, since it uses less digits than its factorization.

1400206161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816351.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1400206161 is about 37419.3287085699. The cubic root of 1400206161 is about 1118.7438512984.

The spelling of 1400206161 in words is "one billion, four hundred million, two hundred six thousand, one hundred sixty-one".