140399229 has 8 divisors (see below), whose sum is σ = 187310880. Its totient is φ = 93543536.

The previous prime is 140399167. The next prime is 140399261. The reversal of 140399229 is 922993041.

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 140399229 - 2⁷ = 140399101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140399269) 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, 7734 + ... + 18455.

It is an arithmetic number, because the mean of its divisors is an integer number (23413860).

Almost surely, 2^140399229 is an apocalyptic number.

It is an amenable number.

140399229 is a deficient number, since it is larger than the sum of its proper divisors (46911651).

140399229 is a wasteful number, since it uses less digits than its factorization.

140399229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27979.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 140399229 is about 11849.0180605821. The cubic root of 140399229 is about 519.7425118205.

The spelling of 140399229 in words is "one hundred forty million, three hundred ninety-nine thousand, two hundred twenty-nine".