140406107 has 2 divisors, whose sum is σ = 140406108. Its totient is φ = 140406106.

The previous prime is 140406073. The next prime is 140406113. The reversal of 140406107 is 701604041.

It is a strong prime.

It is an emirp because it is prime and its reverse (701604041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140406107 - 2¹² = 140402011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140406307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70203053 + 70203054.

It is an arithmetic number, because the mean of its divisors is an integer number (70203054).

Almost surely, 2^140406107 is an apocalyptic number.

140406107 is a deficient number, since it is larger than the sum of its proper divisors (1).

140406107 is an equidigital number, since it uses as much as digits as its factorization.

140406107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 140406107 is about 11849.3082920481. The cubic root of 140406107 is about 519.7509988819.

The spelling of 140406107 in words is "one hundred forty million, four hundred six thousand, one hundred seven".