140003391 has 16 divisors (see below), whose sum is σ = 203908608. Its totient is φ = 84739200.

The previous prime is 140003377. The next prime is 140003393. The reversal of 140003391 is 193300041.

It is not a de Polignac number, because 140003391 - 2⁶ = 140003327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140003393) 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, 27735 + ... + 32391.

It is an arithmetic number, because the mean of its divisors is an integer number (12744288).

Almost surely, 2^140003391 is an apocalyptic number.

140003391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140003391 is a deficient number, since it is larger than the sum of its proper divisors (63905217).

140003391 is a wasteful number, since it uses less digits than its factorization.

140003391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 140003391 is about 11832.3028612354. The cubic root of 140003391 is about 519.2536024721.

It can be divided in two parts, 14000 and 3391, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 140003391 in words is "one hundred forty million, three thousand, three hundred ninety-one".