140666051 has 2 divisors, whose sum is σ = 140666052. Its totient is φ = 140666050.

The previous prime is 140666023. The next prime is 140666059. The reversal of 140666051 is 150666041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140666051 - 2¹⁴ = 140649667 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140666059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70333025 + 70333026.

It is an arithmetic number, because the mean of its divisors is an integer number (70333026).

Almost surely, 2^140666051 is an apocalyptic number.

140666051 is a deficient number, since it is larger than the sum of its proper divisors (1).

140666051 is an equidigital number, since it uses as much as digits as its factorization.

140666051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 140666051 is about 11860.2719614687. The cubic root of 140666051 is about 520.0715520376.

The spelling of 140666051 in words is "one hundred forty million, six hundred sixty-six thousand, fifty-one".