140463229 has 2 divisors, whose sum is σ = 140463230. Its totient is φ = 140463228.

The previous prime is 140463217. The next prime is 140463293. The reversal of 140463229 is 922364041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120231225 + 20232004 = 10965^2 + 4498^2 .

It is an emirp because it is prime and its reverse (922364041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140463229 - 2¹⁵ = 140430461 is a prime.

It is a super-2 number, since 2×140463229² = 39459837402212882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140463229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140463209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70231614 + 70231615.

It is an arithmetic number, because the mean of its divisors is an integer number (70231615).

Almost surely, 2^140463229 is an apocalyptic number.

It is an amenable number.

140463229 is a deficient number, since it is larger than the sum of its proper divisors (1).

140463229 is an equidigital number, since it uses as much as digits as its factorization.

140463229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 140463229 is about 11851.7183986121. The cubic root of 140463229 is about 519.8214734786.

The spelling of 140463229 in words is "one hundred forty million, four hundred sixty-three thousand, two hundred twenty-nine".