140142269 has 2 divisors, whose sum is σ = 140142270. Its totient is φ = 140142268.

The previous prime is 140142257. The next prime is 140142311. The reversal of 140142269 is 962241041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134676025 + 5466244 = 11605^2 + 2338^2 .

It is a cyclic number.

It is not a de Polignac number, because 140142269 - 2¹⁶ = 140076733 is a prime.

It is a super-2 number, since 2×140142269² = 39279711120936722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140132269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70071134 + 70071135.

It is an arithmetic number, because the mean of its divisors is an integer number (70071135).

Almost surely, 2^140142269 is an apocalyptic number.

It is an amenable number.

140142269 is a deficient number, since it is larger than the sum of its proper divisors (1).

140142269 is an equidigital number, since it uses as much as digits as its factorization.

140142269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 140142269 is about 11838.1700021583. The cubic root of 140142269 is about 519.4252389589.

The spelling of 140142269 in words is "one hundred forty million, one hundred forty-two thousand, two hundred sixty-nine".