140466229 has 8 divisors (see below), whose sum is σ = 142138040. Its totient is φ = 138801600.

The previous prime is 140466217. The next prime is 140466233. The reversal of 140466229 is 922664041.

140466229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23328900 + 117137329 = 4830^2 + 10823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140466229 - 2¹⁹ = 139941941 is a prime.

It is a super-2 number, since 2×140466229² = 39461522978960882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140466194 and 140466203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140466269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44359 + ... + 47419.

It is an arithmetic number, because the mean of its divisors is an integer number (17767255).

Almost surely, 2^140466229 is an apocalyptic number.

It is an amenable number.

140466229 is a deficient number, since it is larger than the sum of its proper divisors (1671811).

140466229 is a wasteful number, since it uses less digits than its factorization.

140466229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 140466229 is about 11851.8449618614. The cubic root of 140466229 is about 519.8251742177.

The spelling of 140466229 in words is "one hundred forty million, four hundred sixty-six thousand, two hundred twenty-nine".