140312001 has 8 divisors (see below), whose sum is σ = 187289920. Its totient is φ = 93437712.

The previous prime is 140311981. The next prime is 140312027. The reversal of 140312001 is 100213041.

It is a happy number.

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

It is not a de Polignac number, because 140312001 - 2²¹ = 138214849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140312071) 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, 22690 + ... + 28203.

It is an arithmetic number, because the mean of its divisors is an integer number (23411240).

Almost surely, 2^140312001 is an apocalyptic number.

It is an amenable number.

140312001 is a deficient number, since it is larger than the sum of its proper divisors (46977919).

140312001 is an equidigital number, since it uses as much as digits as its factorization.

140312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51815.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 140312001 is about 11845.3366773596. The cubic root of 140312001 is about 519.6348533662.

Adding to 140312001 its reverse (100213041), we get a palindrome (240525042).

The spelling of 140312001 in words is "one hundred forty million, three hundred twelve thousand, one".