140000001 has 16 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 90898640.

The previous prime is 139999991. The next prime is 140000041. The reversal of 140000001 is 100000041.

It is a cyclic number.

It is not a de Polignac number, because 140000001 - 2¹³ = 139991809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140000041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13720 + ... + 21638.

It is an arithmetic number, because the mean of its divisors is an integer number (11975040).

Almost surely, 2^140000001 is an apocalyptic number.

It is an amenable number.

140000001 is a deficient number, since it is larger than the sum of its proper divisors (51600639).

140000001 is an equidigital number, since it uses as much as digits as its factorization.

140000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 140000001 is about 11832.1596084569. The cubic root of 140000001 is about 519.2494114214.

Adding to 140000001 its reverse (100000041), we get a palindrome (240000042).

The spelling of 140000001 in words is "one hundred forty million, one", and thus it is an aban number.