140406111 has 12 divisors (see below), whose sum is σ = 214738992. Its totient is φ = 88097856.

The previous prime is 140406107. The next prime is 140406113. The reversal of 140406111 is 111604041.

140406111 is a `hidden beast` number, since 14 + 0 + 40 + 611 + 1 = 666.

It is not a de Polignac number, because 140406111 - 2² = 140406107 is a prime.

It is a super-2 number, since 2×140406111² = 39427752012288642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140406113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458691 + ... + 458996.

It is an arithmetic number, because the mean of its divisors is an integer number (17894916).

Almost surely, 2^140406111 is an apocalyptic number.

140406111 is a deficient number, since it is larger than the sum of its proper divisors (74332881).

140406111 is a wasteful number, since it uses less digits than its factorization.

140406111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917710 (or 917707 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 140406111 is about 11849.3084608343. The cubic root of 140406111 is about 519.7510038176.

The spelling of 140406111 in words is "one hundred forty million, four hundred six thousand, one hundred eleven".