140188051 has 2 divisors, whose sum is σ = 140188052. Its totient is φ = 140188050.

The previous prime is 140188049. The next prime is 140188067. The reversal of 140188051 is 150881041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140188051 - 2¹ = 140188049 is a prime.

Together with 140188049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (140188031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70094025 + 70094026.

It is an arithmetic number, because the mean of its divisors is an integer number (70094026).

Almost surely, 2^140188051 is an apocalyptic number.

140188051 is a deficient number, since it is larger than the sum of its proper divisors (1).

140188051 is an equidigital number, since it uses as much as digits as its factorization.

140188051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 140188051 is about 11840.1035046152. The cubic root of 140188051 is about 519.4817951462.

It can be divided in two parts, 140 and 188051, that added together give a triangular number (188191 = T₆₁₃).

The spelling of 140188051 in words is "one hundred forty million, one hundred eighty-eight thousand, fifty-one".