140429407 has 2 divisors, whose sum is σ = 140429408. Its totient is φ = 140429406.

The previous prime is 140429369. The next prime is 140429413. The reversal of 140429407 is 704924041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140429407 - 2¹¹ = 140427359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140429447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70214703 + 70214704.

It is an arithmetic number, because the mean of its divisors is an integer number (70214704).

Almost surely, 2^140429407 is an apocalyptic number.

140429407 is a deficient number, since it is larger than the sum of its proper divisors (1).

140429407 is an equidigital number, since it uses as much as digits as its factorization.

140429407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 140429407 is about 11850.2914310155. The cubic root of 140429407 is about 519.7797476990.

The spelling of 140429407 in words is "one hundred forty million, four hundred twenty-nine thousand, four hundred seven".