140311401 has 4 divisors (see below), whose sum is σ = 187081872. Its totient is φ = 93540932.

The previous prime is 140311399. The next prime is 140311429. The reversal of 140311401 is 104113041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140311401 - 2¹ = 140311399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140311481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23385231 + ... + 23385236.

It is an arithmetic number, because the mean of its divisors is an integer number (46770468).

Almost surely, 2^140311401 is an apocalyptic number.

It is an amenable number.

140311401 is a deficient number, since it is larger than the sum of its proper divisors (46770471).

140311401 is an equidigital number, since it uses as much as digits as its factorization.

140311401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46770470.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 140311401 is about 11845.3113509101. The cubic root of 140311401 is about 519.6341126803.

Adding to 140311401 its reverse (104113041), we get a palindrome (244424442).

The spelling of 140311401 in words is "one hundred forty million, three hundred eleven thousand, four hundred one".