140404001 has 8 divisors (see below), whose sum is σ = 141669120. Its totient is φ = 139143888.

The previous prime is 140403971. The next prime is 140404007. The reversal of 140404001 is 100404041.

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 140404001 - 2¹⁴ = 140387617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140404007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74270 + ... + 76136.

It is an arithmetic number, because the mean of its divisors is an integer number (17708640).

Almost surely, 2^140404001 is an apocalyptic number.

It is an amenable number.

140404001 is a deficient number, since it is larger than the sum of its proper divisors (1265119).

140404001 is a wasteful number, since it uses less digits than its factorization.

140404001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 140404001 is about 11849.2194257681. The cubic root of 140404001 is about 519.7484002270.

Adding to 140404001 its reverse (100404041), we get a palindrome (240808042).

The spelling of 140404001 in words is "one hundred forty million, four hundred four thousand, one".